Great link MadJew- I wish that was available when I was purchasing. But to add my own opinion- with portability you cant go wrong with either 12". The thing that made me purchase the iBook was the performance to price ratio. As you have ruled out Intel possibilities, I feel that you wont be able to see much differences in performance. Furthermore, with the last update of the iBook, all of the intangibles (scrolling track pad, motion sensor, bluetooth) are identical. What you will have to decide is if the extra money, arguably less durable but slightly smaller case, slightly worse wifi reception and battery life, is worth the dvd-rw, better keyboard, official screen span, more but slower v-ram, and slightly faster processor speed. If money is no issue than of course go with the Pbook. But also consider using the money to increase RAM and HD on an iBook. RAM is a surprising determining factor of performance.