One day when aliens are writing our history books, they will label the App Store as one of the biggest success stories in gaming history. Despite being questioned as a viable gaming platform early on, developers flocked to the iPhone to make their games. The iPad looks to usher in a new era of mobile gaming through its large touchscreen and vibrant display. The interesting thing is we could have been playing iPad games well before our time.

Gamertell has compiled a list of more than 550 iPad-only game listed in iTunes that will be ready for the iPad’s April 3, 2010, launch. Check it out…