New PowerBooks in pipeline, sources confirm By Nick dePlume, Publisher and Editor in Chief August 18, 2003 - Apple earlier this month wrapped up development of revised PowerBook models, sources confirmed to Think Secret. The hardware projects, known internally as Q16 and Q41, consist of upgrades to the the 15-inch and 17-inch PowerBook G4. The projects were scheduled to complete in the first part of August. The company is also readying an update to the 12-inch PowerBook, but that release will fo