I don’t use Grooveshark, nor do I have a jailbroken iPhone to test this one out. I got an email from a pixel addict, with these screenshots for Grooveshark 2.0. “Not so hot for the main page icon layout but the rest is totally sex.”
Grooveshark costs $3, and is only available on Cydia. Here’s a review on SA of the previous version, by the aforementioned pixel addict Patrick Patience.