I've just installed and run Backup 3. First impression: it's much better than Backup 2. Of course, how could it not be? What I love most? The ability to easily schedule backups of things like my purchased music, which I can safely backup daily. Easy to set up, easy to run. And the 1GB total disk space makes it a lot easier to actually use my iDisk to back up files that normally would have to have been sent to CD or DVD. This isn't the world's best backup program. But Backup and backup 2 were so horrible that I have to admit I am pleasantly surprised by how nice the interface to Backup 3 turned out to be.