Well, that's what they're saying. Most people believe that the processor, if nothing else, will be refreshed in January at MacWorld. A quick search of the forums and you will find a slew of threads based on this topic.
There are a crazy amount of threads on this subject. Buy when you need it. The current one is great as is!
So is your PowerBook! I'm keeping my MBP for at least 3 years, it rockz - no need to follow the hype and wait for upgrades etc.
I'm popping for a MBP in January. Since I'm this close to the next latest and greatest, I'll wait for it.
Sighs I bought my MBP in June.............................. should I have waited? But kinda needed it for uni lol. Perfectly happy with my current MBP tho