Apple will tell you that iTunes 8.2.1 fixes bugs and, in particular, improves interoperability with iPhones and iPod Touches running iPhone 3.0 Software. But, it really it only has one ‘feature:’ It blocks the Palm Pre’s iTunes compatibility. KDE thinks there’s another way.
But, just to get this out of the way, I’m now running iTunes 8.2.1 on my Windows PCs and Macs, including both a Tiger and a Leopard Mac OS X system. If there’s anything noteworthy about the new iTunes on any of these systems, I haven’t seen it yet. It certainly doesn’t seem to have mattered in the least to my 1st generation iPod Touches or my Apple TV.
As far as I can tell, the only thing it really does is prevent Palm Pre’s from talking to iTunes. I’m not a Pre fan, but if I were a Pre user I certainly would want iTunes compatibility. Or, at least, something that works like iTunes. Apple, however, isn’t going to let me have it.