Uses for old Palm OS and Blackberry devices

I have an old Treo 680, Palm TX, and Blackberry Curve 8310 that I'm trying to figure out what to do with. I wanted to turn the TX into a portable FTP/WebDAV/Samba/Whatever server, but there don't appear to be any good programs available for that, and I don't think it can connect to my school's WPA2-Enterprise network anyway.

Does anyone have any ideas for what I could do with them?