Backupninja so far looks pretty good. I like that it's made in such a way that it's extendible and the fact that it takes advantage of other tools that already perform well, but lack in features. The only thing it lacks is the ability to handle offline situations.
Even though backupninja lacks the ability to handle offline situations, I think I'll go for it. For this same reason, I'm pretty much abandoning the [[!comparison table|2007/backup_comparison]] I started to create. I'll update the same information about backupninja to it, but unless I don't like backupninja for some reason it's unlikely that I'll revisit it any time soon.