I’ve been using Backupify for a few weeks now, and it seems to be working great. I’m actually using it to back up this site. The one thing I haven’t tested is restoring from a backup, but at least with Gmail and Google Docs, it is pretty easy to confirm what is in the backup by just examining the backup.

One thing I wish Backupify had was the ability to backup the version of Gmail that comes in Google Apps for domains. I tried it earlier today, and no dice.