Apple is expected to introduce new PowerBooks and iBooks early next week. Apple will introduce revised 12-inch PowerBooks (two models), two revised 15-inch PowerBooks, one new model of the 12" iBook, two new models of the 14" iBook, and a single high-end 17" PowerBook configuration. The laptops are expected to be available early next week in limited quantities. Sources report that each model will feature speed-bumped G4 processors, while some models will feature larger drives and upgraded graphics cards