Oddball gifts for uber geeks

These Christmas gift ideas may surprise even the most hardened geeks in your life

Wi-Fi Detection T-Shirt

Who to give it to: The mobile computing/Internet geek

There are a few ways to search for Wi-Fi these days: You can use your smartphone, you can use a Wi-Fi detection gadgets, or you can walk around with your laptop open, hoping to run into a signal. But all of those options involve being proactive (taking your smartphone out of your pocket, for example).For the really lazy geek, there's now another option: the Wi-Fi Detector Shirt ($US19.99, ThinkGeek.com). This black T-shirt shows the signal strength of 802.11b or 802.11g Wi-Fi networks, changing as the signal strength changes. The animation runs on three AAA batteries, which can (and should) be removed--along with the signal decal itself--from the shirt for washing. It's the perfect gift for someone who needs to know the status of Wi-Fi hotspots at all times.

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