I was planning to shortly upgrade my trusty 15" Powerbook with some more memory (my 1G DIMM refused to work with 10.4). And I did hear about the possibility of new Intel-based Powerbooks but figured it was just wishful thinking. But then I saw this on MacNN's Macworld coverage:
MacBook Pro: 1-inch thin, 5.4 lbs. 1.67GHZ Intel Core Duo with ATI Radeon X600. ExpressCard Slot. $1999 and $2499. 4-5 faster. Due in February.
...so I'll probably hold off on that upgrade and start convincing Barb she needs my old Powerbook for her tutoring business.