Weak
Ya, the PowerMac update is pretty cool, but no way can I drop $3300 on a new computer. So, as nice as the machine is, it does me no good.
The PB update was pretty weak, IMO. Esp w/o an update to the 12". They could've at least updated the screens and made dual-layer burners an option. If I wasn't so optimistic as to believe we'll see Mactel laptops at MWSF, I'd probably give my fiancee my PB and just go and get a Vaio and hope that OS X x86 hacked version would work on it.
In fact, did anyone see the new Vaios made of carbon fiber (Vaio TX series)? Smaller, lighter than previous models (2.7lbs for 16" and 17" widescreens), much better batteries (up to 9hrs -- 14-15hrs with extended battery), much much better screens, etc. In the meantime, the PB stays pretty much stagnant. I understand why they may wait until the Mactel switch to come out with a radically new design, but who knows when that's going to happen. In the meantime, the competition is just passing them by.
Honestly, if it wasn't for OS X, would you buy a Powerbook? I'm seriously curious.