PSP System Software Ver. 6.60 August 10th, 2011 / XTREME PSP / PSP Firmware 0 Music Music Unlimited powered by Qriocity™ application has been updated. PlayStation Network System software stability during use of some features has been improved. Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on WhatsApp (Opens in new window) Firmware, PSP