OS X.

Practically every complaint I had about Limewire is gone with OS X. The new version is actually fast, it doesn't slow your whole machine to a halt, doesn't munge files into "Limewire Documents", doesn't chop the filenames off, and hasn't yet dropped my number of connections.

I know the new, faster computer has a bit to do with the improvements, but I really think the OSX version is head and shoulders above the Classic version. If you're on the fence about upgrading, GO FOR IT.

Hope this helps somebody. It was a real pleasant surprise for me.