Just got a Tungsten T3. Picked it up on eBay last week for $130. Came with a hard case and a Wi-Fi SD Cartridge.
I tested the wi-fi cartridge while walking around the block. The results left me horrified. Not because of the hardware – that worked beautifully. What bothered me was now many wireless routers were broadcasting in the clear with no security at all.
Only about one-third of the routers that I saw had security of any kind. Of the remainder, about half did not even change the default settings.
Now all that I was doing was looking for networks. I was not trying to use them for anything – and even if I had, the only thing that I would be doing would be e-mail, which is pretty harmless.
The next dude in the area might have less benign intent.