This answer to a question asked earlier today reminded me that I had been wanting to check out Prey because I had heard some good things about it. I ended up installing it and creating an account, but it appears you can only activate Prey on a lost device via an SMS message. Their original announcement for the Android version notes this, and it looks like things haven't changed (insofar as I can tell, anyway).
This is fine for my EVO, but I also have a Motorola Xoom and I'm not sure how it would work in this case. Also of note: I don't have a data plan on the Xoom, I just use it for wifi. It is a 3G version because I wanted to have the option of possibly adding a data plan later, but it has never been authenticated on Verizon's network.
The Xoom is supported and I can install Prey from the Market just fine, but is there any way for me to activate Prey if my Xoom - or any device that can't receive an SMS - was ever lost or stolen?