according to Jeff Duntemann http://www.duntemann.com/Diary.htm,
a new and rather interesting device just dropped into our collective laps:
"Esther Schindler sent me a pointer to a new gadget: The Kensington Wi-Fi Detector. Push the button, and if you're within about 200 feet of a Wi-Fi hotspot, the lights will light up in proportion to field strength. It detects both 802.11b and 802.11g fields (both on the 2.4 GHz band) and will filter out RF fields from cordless phones, microwave ovens, and other Part 15 gadgetry working on 2.4 GHz. This is not a bad idea, since it can save time if you want to find out if there's a hotspot nearby but don't want to have to boot your laptop. However, it has a fatal flaw: It can't tell you whether a hotspot is open or closed (i.e., whether WEP is engaged.) In some knucklehead neighborhoods this won't matter much because there are so many unprotected networks around (in Chicago, I went five miles down Harlem Avenue last year without spotting a single encrypted network!) but for those who want to stay on the right side of the law, booting the machine and running NetStumbler is way better. $30. Not available yet. I'm curious to see what the hardware hackers are going to do with this—the device is just itching to be built into something much cooler."
The Kensington WiFi detector seems just the sort of
summertime hack project we've all been looking for.
I'm mentally thin, not physically.