After nearly seven years, my 2005 iMac G5 (iSight) is still in daily use as my main computer. I have Leopard on it and it runs rock-solid. Of course, since Apple discontinued support for PowerPC Macs some time ago, Software Update doesn't have much to do for me anymore, but every two weeks or so, it will still try to get me to update to the newest version of iTunes (10.5.3 came up today). I'm still running iTunes 9 on my machine -- I made the mistake of "upgrading" to iTunes 10 on my laptop and I don't like the duller, gray interface nor do I need any of the newer "features" like Ping. So, I keep dismissing SU's prompts to upgrade iTunes. What I keep wondering, though, is would the latest iTunes even run on my G5? I would be surprised if they were still writing iTunes for PPC Macs. Is anyone running iTunes 10+ on a PPC machine? How well does it run? I'm just curious.