Exchange network administrators will be able to remotely manage information on handheld devices loaded with WM5.
"The two products, called Direct Mobile Messaging for Exchange 2003 Service Pack 2, and Messaging and Security Feature Pack for Windows Mobile 5, allow administrators to lay down security policies and load software to remote devices. For example, a company can wipe out the software on a Pocket PC device after three failed login attempts, which might indicate the device is lost or stolen."
No word yet if they will be able to backup your device remotely to the network, or if you will still be responsible for that.
Could be time to get rid of all those mp3s, videos and personal items, if this is the case!