HOW-TO BYPASS TRIAL PERIOD

Go to: /var/mobile/Library/Preferences/com.grooveshark.Grooveshark.plist

change your 5 digit mobileID to any digits, it will keep the 14 day trial going (possibly forever)

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I'm not shy about my love of Grooveshark. No one pays me to say it, it's just the best streaming music app I've used -- and it's fully functional in Canada unlike some of its geotarded cousins in the audio game.

They caused a bit of a ruckus recently when they decided to push their iPhone app -- which had been roundly denied by Apple -- via Cydia, doing an end run around Jobs and Co.

There are two things to know about the app. First, it's awesome. It's quite possibly the greatest thing I've ever installed on my jailbroken iPod touch. Second, there's just no way Apple would ever have approved Grooveshark the way it was released. As much as I enjoy the ability to make single songs and entire playlists available offline with the push of a button, it's not the kind of functionality Apple wants on its devices.

ed: as pointed out by commenters, Spotify -- which was approved -- does offline music as well. I've reached out to Grooveshark Josh Bonnain for some clarification about what went down. It's also worth noting that both Palm and Blackberry approved Grooveshark.

That said, if you're using a jailbroken device, find Grooveshark and install it. The app is pure mobile music goodness, and the missing piece in Grooveshark's all-around awesomeness puzzle.

Apart from providing fast access to your playlists and favorite songs, you've also got Grooveshark's entire library at your disposal via the search screen. You can also favorite, like, and dislike tunes while you listen.

Have a look at the screenshots after the break, and see what you're missing if you don't have a jailbroken iPhone or iPod!