I don't know how many people know this or want to know this, but there is a slight problem.
[Depending how you look at it, it's not a problem and it's a useless post]
Chris Rue wrote this quick guide on how to prime WM device before they go into battle and get all lost and stuff.
Read the full article/blog/post here:
http://www.chrisrue.com/funcave/2006/08/solving-a-problem-with-remote-device-wipe.html
What Chris said and I agree with - "without priming, there is no way to reasonably assure that a device in the field will fully execute a remote wipe without leaving a loophole for the data to be compromised."