Huh. I’ve used my 17" MBP with core2 duo for 8 hours straight with no power adapter, and a constant skype session for a (egregious 12-hour) post-mortem meeting. They put a giant battery in that thing. I have never seen any PC/Windows laptop work for more than 2 hours of continuous use. Note: I am a UNIX sysadmin, and have used almost every kind of laptop in the last 17 years.
I get about 6 hours of continuous use out of my quad-core 17" MBP. I will be VERY sad when this thing dies, because a tiny Air or netbook just won’t cut it for me.
