I've noticed since the upgrade Pandora doesn't work. It at first played one song, then I created a new station. Took about two minutes for the song to start and then it went to play another song but it took so long I decided to go back and pick a station that I had already created. Instead of playing songs, it would say Loading with the album, song info in the background. It won't play the songs, but it cycles through them as I can see the album/song info changing in the background.
My biggest problem so far has been texting. My text was smooth and flawless before. Now it will take several seconds for the characters I entered to show up on the screen. SUPER ANNOYING!
Hope they have a fix out soon!