Remotely lock and wipe your lost/stolen phone, localize via GPS.

Long a corporate feature, remote wipe and lock are now common features; No need to have an Exchange server. And thanks to the vibrant Windows Mobile developer community. Safe.My.Windows.Phone is a nice but not free application that lets you do the following in the event that you lose your phone or it gets stolen:
 

lock your phone from anybody use

localize your phone ^*)

hard-reset to the factory default settings, what deletes all your sensitivity data

 

Download the desktop installer from safe.my.windows.phone.setup.exe.
 
Download cab file directly to your device from safe.my.windows.phone.setup.cab
 
Website: http://www.jgui.net/safe.my.windows.phone/index.html