Looking at upgrading the computer. I'm currently on a 1.33 ibook G4. I'd like something with a bigger screen, a little more power, and most importantly the ability to use an evdo card. The apple store has refurbished 1.67 powerbook g4 for $1350, which is about the price range I'm looking at. The powerbook has the pcmcia slot, which is compatible with the current evdo cards. The macbook pro has the expresscard slot, which apparently an express evdo card is right around the corner. Is it worth holding out and paying the extra cash for a macbook pro and waiting on the evdo, or just going with the powerbook? What about future software updates and hardware compatability with the powerpc chips? Thanks.