Hi, I have a PowerBook G4 that I purchased about 6 years ago that is running Tiger. I have 2GB of RAM in it. Applications in general seem to be getting slow and I'd like to rebuild it with Leopard. How well do you think Leopard will run on it? I've been thinking of upgrading to either a MacBook Pro or MBA. I do basic stuff with it. I might be getting an iphone in the future and I need Leopard on it to synch it with. Other things I do are internet, photos, iphoto, imovie, itunes streaming to stereo, and email. Thanks.