I have an iBook G4 that I am looking to give to someone else as a birthday present. It is a 1.33ghz 12" and I am planning to upgrade the RAM to 1.50gb. Would the iBook run Leopard well? Or should I just stick with Tiger? The only thing that makes me nervous about sticking with Tiger is that so much of the new useful software for macs is moving to 10.5+ and I don't want to be unable to get new software for the computer in the future. Even so, I also don't want the iBook to be so sluggish that it isn't much use.. Anyone have experience with a similar machine running Leopard and can share their thoughts?