Are you kidding? I installed the screen spanning hack on my iBook and it's wonderful! It's one more great capability. The iBook is built mostly for edu use so more than likely it would be the more durable machine. While the Powerbook looks nicer I love the keyboard on my iBook. For 1.2K(edu discount). I was able to get bluetooth airport and a 60GB hard drive in this sucker. I know the powerbook comes with all that but .33GHz didn't matter to much to me. Plus I plan to sell my iBook after every update so I can stay on top. iBooks carry great resale value. When it comes down to it I think it (if you have the money) comes down to aesthetics. The powerbook is nicer looking. The iBook is cheaper.