Ted Morgan, the head of Skyhook, explained in an interview that while GPS is certainly the gold standard, and while it works well in stand-alone devices designed for continuous use and navigation, it's not the right choice by itself for mobile devices. It can take 5 or 10 minutes for a GPS-only device to get an accurate fix on the satellites it needs to give you accurate information. (Various shortcuts can provide less accurate information more quickly.)

"This notion of 'tell a user or consumer to stand outside for 30 seconds before they can search for the nearest pharmacy' is pretty silly," Morgan said. He noted that with all the radios now found in newer mobile devices, using several of them produces a fast and much more accurate result. The iPhone 3G, for instance, sports quad-band 2G, tri-band 3G, Bluetooth, Wi-Fi, and GPS chips.

Morgan said that A-GPS (assisted GPS) already combines cell tower information with GPS. A cell phone can be told approximately where it is, and thus instead of cycling through 24 satellites, start with the two that are most directly overhead. This can reduce the time to gain a location to as little as 20 seconds, Morgan said, although any kind of movement usually lengthens the time to 30 to 60 seconds.

Skyhook's system takes advantage of this aspect of A-GPS. They let a GPS system grab onto two satellites quickly to correct data from their Wi-Fi Position System (WPS). Morgan said that this reduces the WPS error by 35 to 40 percent through "weak fixes."

Within cities' concrete canyons, "you can only get a true GPS fix about 70 percent of the time outdoor, but you get two satellites all the time," Morgan said. "In the entire footprint, we're able to use this hybrid technology, even though GPS is only available 70 percent of the time." Outside of metro areas, cell towers can still be used to improve GPS startup times.

Skyhook has continued to expand its European coverage for WPS; they cover about 8,000 cities in the US and Canada, which is roughly 70 percent of the population; "it looks exactly like a cellular coverage map," Morgan said, and includes "any town with five streets in it."

In Europe, their current big push, partly because of their inclusion in the iPhone, they cover 70 percent of population in the current countries--the UK, France, and Germany--but they're now at 50 percent of the population of the rest of Western Europe. They're working assiduously in Japan, Korea, Hong Kong, and Australia as well, and looking into China and India. India has very little Wi-Fi, so they may rely more on cell towers there.

The company also announced a partnership with wireless chip maker CSR today, which is a major providers of Wi-Fi and Bluetooth chips to computer and handset makers. Nearly a year and a half ago, Skyhook partnered with SiRF, the dominant worldwide chip supplier for stand-alone GPS gear, that's also making a push into mobile devices. Skyhook obviously needs a win with a cell chip maker, like Infineon, Broadcom, or Qualcomm, given the XPS technology, to score a place in tens of millions of cell phones beyond the iPhone.

Skyhook's technology most recently appeared in a soon-to-ship model of the Eye-Fi--the Explore. The $130 Secure Digital card with Wi-Fi built in allows you to take pictures with any camera, and have the Wi-Fi signal space recorded for later lookup when you upload photos. The pictures are geotagged with that information. The card can optionally be used with Wayport's 10,000 strong Wi-Fi network in the U.S for $15 extra per month. David Pogue of The New York Times recently wrote up the Eye-Fi Explore.

For June, we have an 802.1X hat-trick to blame for my slack blogging habits. Over the past few weeks, I’ve had back-to-back 802.1X implementations, one wired, one wireless and one with both. Two government customers and one commercial, not in that order. And I even did one semi-training-slash-semi-implementation-quick-start for another customer.

It’s been fun, but 1X is always challenging. The variety of components, the nature of the interactions and the ‘newness’ of actual implementations make it difficult to work from any type of cookbook or implementation guide. There are just too many variables.

When will it be easier? I think as 1X is more widely implemented in the real world, customers will become more familiar with the concepts and integrators will have more experience to make it go smoothly. For now, everyone has to just take it one step at a time and address issues as they arise. And, for now, I’ll enjoy the job security that 1X offers ;)

Luckily, I’ve had the opportunity to work with a variety of customers and a variety of environments and equipment while hammering out 802.1X. The experience and exposure has certainly given me a unique insight into the issues, complications and solutions that come along with a 1X project.

At present, I think we’ve successfully configured 1X on about a dozen different types of equipment, both switches and wireless APs and controllers, from a variety of vendors. It may not sound like much, but in the world of 1X, that’s quite a variety when you consider each manufacturer has their own ‘system’ for configuring 1X and the commands and procedures can vary greatly even from product-to-product from the same vendor.

Is the 1X streak over? Not at all. We have several customers with NAC and 802.1X projects that we had to queue up for after June 30. I’ll keep you posted!

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While NAC tools are often advertised as plug-and-play, GuideWorks found that the NAC setup required a high level of networking expertise. Fortunately, the Inglewood site had plenty of technical expertise because that’s where many of the company’s developers are stationed. In addition, GuideWorks put one of its front-desk employees in charge of setting up new accounts. But because her technical background was limited, the company had to walk her through a learning curve.

Now the company is planning to deploy the system at its Radnor office, which will be a bit more challenging since there’s less technical expertise there, and that office gets a greater number of visitors. So GuideWorks has been on the search for employees to support the NAC system there. The company expects to have NAC up and running there by the end of the summer.

So 2 years after trial they are rolled out in one office and have to hire employees to support the NAC system at the next office. This was a problem with many of the failed NAC companies over the last few years and I think the problem with this Tipping Point solution. Just providing guest access should not be that hard! Yes the StillSecure Safe Access solution would have been much easier and faster to implement, but to be fair, any of the leading NAC solutions would have been up and running easier as well.

While this article was supposed to serve as reference and case study for the Tipping Point NAC solution, it is far from inspiring. If I were a customer looking into NAC, I don't think this would make run out and look at the Tipping Point solution. Moral of the story is, just because you made a good IPS doesn't mean you have a very good NAC product. When it comes to something like NAC, quality counts and buying a 2nd tier solution can cost you in time to implementation and total cost of ownership.

One of the projects leaders uses terms that should warm every New Yorker's heart, if he or she knew what they meant. IT head Paul Cosgrave says the system will overcome silos, an often disparaging term for the separation of resources across groups that can only expensively be overcome. It's the government and business equivalent of the academic problem of a lack of cross-discipline focus.

One of the first applications allows sanitation workforce managers a frighteningly precise amount of knowledge about routes, activities, and behavior of trucks in their territory. Let's hope that's not misused! Efficiency is one thing; micro-management is another.

Another project is testing wireless water-meter reading. The city hopes to spend $90 per meter for the upgrade and shed part of a $12.2m contract with Con Edison that covers 850,000 units. What should be useful about this is that problems can be detected by monitoring waterflow patterns, which in turn allows the often huge problems that take months to notice (occurring underground or in basements where rivers formerly flowed) to be stopped before they turn into multi-million-dollar problems for property owners or the city. Anytime anything happens in Manhattan, it's a multi-million dollar problem.