lol. this topic has been going on since July. i think there are about 20+ threads a day regarding this topic.
i actually was trying to sell my 1.67 powerbook at the begining of august, and a bunch of people were telling me, "i'll buy it for $1500 (or some other low ball price) because the new PB is supposed to come out next week". good thing i decided to keep it.
but yes, i do believe it should be coming out soon - maybe right before Christmas.