Fresh on the heels of update 3.80, Sony has released System Update 3.90 for the PSP. While this update does feature expanded support for PlayStation Network titles, the big news is the inclusion of Skype. Skype will be newly lodged under the Network menu. Older PSP owners shouldn't flock to this update, however. The Skype portion is only available/visible/useable on PSP-2000 systems. Yet another reason to keep a vintage PSP steadfastly fixed on the ever-hackable system software version 1.50.