Regarding the Mac port of P5, there is one significant difference between Macs and Wintels... The Mac hardware platform is a lot more homogenrous than the Wintel platform. Because of the tight control Apple places on variety to their platforms, there will most defintely be a lot less "hardware/software" related problems to a Mac release than a Wintel release, where you have to deal with lots of OEM and 3rd party memory/processors/graphics cards/operating systems....