Will an upgrade to the 12" iBook kill the 12" Powerbook? The iBooks are "due" for an update in approximately 2-3 months, but they're already at 800 Mhz, whereas the 12" Powerbooks are only at 867Mhz. Do you think Apple would dare update the iBook to a cpu speed above and beyond that of their Powerbook? Would it not cannibalize the sales of the Powerbook if the ibook was bumped to 900Mhz? At an $800 difference between them at the low end models, it sure looks as though an iBook update of any sort will either NOT include the 12", or not happen to the line as "scheduled".