New TeamDrive Beta Supports WebDAV over HTTPS

I'm still hunting for a good "all-inclusive" solution for backup, online storage and versioning. Lately, more and more services pop up (there's an incomplete list buried in my wiki), but TeamDrive stands out because you can use it with any WebDAV storage. I like Syncplicity for its ease of use ("zero configuration"), but I just don't feel well knowing that my files are out there, unencrypted, on some strangers' server.
Now that they've added HTTPS and Vista x64 support, I really need to try it. Also, it is the only tool in this area that doesn't require administrative privileges and runs from a USB stick ("portable"). Linux and Mac versions should be out soon.

Also, you might want to look at the somewhat similar PowerFolder (no versioning, no WebDAV support).