I have a 16GB Touch. I have been streaming Pandora from it for the last year but over the last month it keeps skipping and then closing Pandora out. Could it be because of the hotter weather? I upgraded to 4.0 but it was doing it before the upgrade.
Mine does the same thing. When the screens goes dark Pandora just skips and sometimes crashes unless I re-activate the screen. I feel this is an issue with something that Apple changed because an older iPod Touch will not do this. I found many people talking about this issue outside of the Apple site so I returned my iPod Touch. I also returned an iPad because it had Wi-Fi issues. In my opinion, Apple is starting to sell products that have many issues and are no longer worth the money.
I have the 3G iPhone and have never had an issue. Things are starting to go downhill!
I reloaded the Pandora app from the App Store to my 3G iPhone(after first deleting it). After signing back in with my old account information, the skipping and crashes seem to have stopped.
I read somewhere else not to reinstall using iTunes...