The fun stuff, however, is really contained within the voice update. This new voice, dubbed "station voice," lets you communicate with friends from within the game or outside of the game. Creating a room from outside of the game is done with your in-game character, letting people who are on the station launcher join you, or people inside of the game join your room from the inside, no launcher required.
Plus, the other new features like the upgraded servers that will give more downstream bandwidth for game updates, are certainly nothing to sneeze at.
This doesn't mean that Sony is done with upgrading and changing the launcher, as they've already pledged to continue taking user feedback and pushing that into their product to constantly make a better launcher.
For the full patch notes, check them out on the EverQuest forums, located in this thread.