
Firstly their cheapish £60 to £120 used, but the real thinking was:
Fully rugged, fanless, dust and water resistant (IP65*, MIL-STD 810G*)
Drop resistant.
5.6" LCD with transflective plus sunbright viewable touchscreen.
1.06kg in weight.
GPS.
3G.
Bluetooth.
WiFi.
Barcode scanner.
Camera.
LED light.
Hot swappable batteries.
They run Windows 7 with an Atom Processor (not the fastest but fine) with 2GB of RAM, so far I'm happy with their performance.
From a prepping standpoint I see them being useful for a few things, firstly with the barcode scanner, keeping track of food stocks is much easier and just keeping yourself organised as a whole is a big plus, but secondly, when you pair it up with a handheld transceiver like the Baofeng preppers love, you have digital communications and can send text, maps and other images using freely available software.
You also have internet everywhere with a 3G signal or wifi and the GPS has solid performance for mapping.


