When the original Rock Band iOS game hit the market, many were skeptical if it would be successful as Tap Tap Revenge already ruled the market, but Rock Band proved to be a hit. Now Rock Band Reloaded is available on that magical market for $4.99 and adds expert modes and vocals.

Versions are available for the iPod Touch, iPhone and of course the big brother iPad. The iPad version will support split screen multiplayer, a drum kit, and change things around for lefties. You can even build a custom strap for your iPad, and carry it like a guitar, walking around your local Starbucks or train station strumming away to Nirvana.

Hey, if this game does well enough, maybe Apple can buy Harmonix...

[Joystiq]