There currently isn't a way with in TE to accomplish this, however, the SecurePlus product can encrypt, delete files and lock down the device if certain criteria are met with in the products config..
Thank you for your answer. While this seems to be a great tool, 2 things make it not (completely) usable in my case:
1) It's for CE only, while I have both WinMo and WinCE in my environment
2) It requires the Avalanche Server and we do not use it anymore to manage our devices
Would you think of something similar that works for both of the OSes and doesn't require an Avalanche Server (and licenses)?