Find a Hotspot With Your Pen

I'm all for gadget watches and gadget pens, so long as they're actually useful. (And so long as I can tell time or write with them.) While it's not something I use every day, I sure could have used Informatica's Wi-Fi Pen while I was at the CHI 2006 conference earlier this year. It would have enabled me to check the Wi-Fi signal wherever I was standing (a row of colored LEDs indicates the signal strength), and the white LED beam would have let me temporarily blind anyone else making a play for the one comfy chair in the area. See, now that's useful.