Don't expect see this everywhere, at least not for a while. The underlying technology is only in testing at three airports, and Austin's is the first to actually show the predictions. It also doesn't provide data in real time, so an unruly passenger could throw everything off. The WiFi data could be useful for much more than security if it proves a success, however. Boingo tells ITWorld that the data could help airlines tell you when to leave for the airport, locate the facility's wheelchairs and even tell you when there's a line for the washroom. While this won't help you catch a break if you're really, truly late, it may help you relax when there's plenty of time to spare.

[Image credit: Dion Hinchcliffe, Flickr]