Apple killing 15-inch G4 PowerBook?

First it was the 17-inch iMac G5. Now, signs are beginning to surface that the next legacy model to disappear from Apple's virtual shelves will be the 15-inch PowerBook G4. According to reports, Apple has already stopped selling the 15-incher through some channels, such as a B2B program and some versions of Apple's online store for K-12 educators. While we haven't been able to independently confirm this (when we checked the education store, the 15-inch G4 showed up), it won't surprise us to see the 15-inch model disappear soon. After all, the 15-inch MacBook Pro is now shipping, and it doesn't make sense for Apple to continue selling last year's model any longer than the company needs to in order to clear out existing stock.