Microsoft Pocket PC Security

Anyone know of any god programs to "lock" a MS Pocket PC v3? I just want something that will lock the screen with a password and / or encrypt data.

I was poking around here the other day for a friend...nothing in the way of anything free though.

http://www.bypaul.com/PPCFS/Cat/Security.htm

Another good resource straight from MS.

http://www.microsoft.com/windowsmobi...c/default.mspx