Prey looks OK, but I can't get it to work on my Macbook - the control site shows no devices, and times out adding a device. Looks like that's one program I won't be using.
Anyone have any idea why PDOpenLinuxRunBox is failing? At least it is on the Fedora 10 systems here, I haven't tested on my Mint/Ubuntu VMs at home. Alt+F4 and Alt+F2 (tested both) aren't working, and I'm confused.
That link isn't loading for me, but if you're talking about the FON SIMPL, no. The SIMPL has a Ralink chip (IIRC), not Atheros.
Don't know about the 2100C, never heard of it.