Turn your iPhone into a radiation detector

First up was the $330 Scosche RDTX-PRO. Now Scosche has released the lower-priced and slightly less accurate RDTX version for around $270. It detects gamma radiation above 120keV within +/- 10 percent accuracy. Loosely translated from geek speak, that just means that you'll definitely know if you're in a dangerous spot.
The radTEST app is free and breaks the metering down into simple green, yellow, and red zones so you can tell at a glance if you should be getting the heck out of there.
Since we're talking about an iPhone app here, there is the obligatory social-media connection. You can tag locations on Google Maps, and Tweet and Facebook your radiation results to let your friends know where it's safe--or not--to roam.

A Wi-Fi home version called the HRDTX is scheduled to come out in early 2012. Currently, the detectors are available in Japan with no word yet on a wider release.