Recently my battery life took a dive. Around the same time, I installed Grooveshark. About this phone didn't give me any useful info, although in the past it has. It was saying nothing about Grooveshark using up battery life.
I did notice that I would get warnings that Grooveshark was losing its internet connection, even though I wasn't using it.
A couple of days ago I removed it as a test. I've had excellent battery life since then. Coincidence? Have others had Grooveshark eat batteries?