I was at another forum and someone said this...
Comp-Usa is out of stock of most models of the powerbook nationwide. You can go to their webpage and put in your zipcode to check it out for yourself since it shows delayed stock numbers. Also, the 15" 1.5ghz PB is not even available to be shipped from their online store anymore.
All major mac online retailers (macmall, clubmac, macconnetion, etc...) are out of stock of the 15" PB models with restock dates of 2 weeks+. To see this information go to their webpages, where they tell you to call for stock information. Well, I called and each conversation went along these lines...
"We are out of stock but we should have more in soon... Let me check... Hmm, that is weird, it looks like we have no ETA as to when we will get any more in. We usually get a daily email letting us know when out of stock items will arrive, but in this case there isn't any info".
I checked CompUSA and entered my zip code and, sure enough, it said SOLD OUT for all four locations. Oh, they were also talking about how the PB image on the main Apple Store website has changed from the dark blue picture to a daytime picture of the Golden Gate Bridge. Are these good signs for an update soon?