They should be the new versions. Of course, if you're asking about the powerbooks out on display, whether the Stores have the latest on display or maybe have just kept to the old for display purposes, there's an easy way to tell. Just point/click the mouse at the apple symbol in the upper left-hand corner. Pick "About this Mac." 12" powerbooks with a 1.33 processer are the latest, Rev C, 15" powerbooks that are either 1.33 combos or 1.5 superdrives are the latest Rev B.