I have been running on a Tibook 667mhz for quite a while now. I really want to upgrade to a new MBP (mid level 15"). When they came out, I was a bit suprised they were only 32bit. I know this dosent matter in most situations, but for my work, 4GB+ ram would be awesome. Is it likley that the next release cycle will see 64bit? Or will it probably be a speed bump? I used to be all up to date on this stuff, but I have been out of the loop for a while. Has Intel announced any processors beyond the core2duo that may be coming out in the next 6months?