The jury must consider if iTunes 7.0 and iTunes 7.4 added functionality and improvements to the user. . . However both iTunes 7.0 and 7.4 ushered in major functionality increases. Cover-flow, iPod games, gapless playback, and ALBUMS were added to the abilities with iTunes 7.0 on September 12, 2006 and all of those increased abilities overwrote any RealNetwork's Codec installed and the vulnerability that may have existed in iTunes 6.x.
Then here's a biggie. On September 7, 2007, Apple updated iTunes 7.4 for the iPod TOUCH. . . the most major upgrade since the iPod was originally released. . . introducing support for a TOUCH SCREEN interface!