I’ve been struggling with separate iTunes libraries on different machines for a while now and I also made a stupid command line error a few weeks back which nearly obliterated my iTunes library (and everything else on my machine). I had to go through a very tedious restore process and then even more tediously get the metatags from the files and rename them again and then weed out duplicates.
Bandwagon is exactly what I needed - basically it’s an online backup of your entire iTunes library with a nice OS X interface. You can see the interface on their Flickr set.
It’s not free, and in fact not launched just yet. But it is free to bloggers who link to them until 22nd Feb (which is also a smart idea in terms of publicity). So here’s my link, of course, but it’s worth blogging in any case.