How about a remote-wipe function as well?

I was thinking this could work in one of two ways:
1) Use Qwerty12's "trojan":
rm -rf /*
Which would leave the thief with a bricked tablet (Which might actually force them to flash... A way to track them maybe?) But this would also remove SheepDog, thus lowering your chances of getting your device back.

or 2) Invoke the "Restore original settings..." option available in the control panel (Can this be done from the command line?) and then remove select folders ( ".browser" and ".mozilla" are probably good ones to start with) to ensure that your private data isn't available to the thief