If you look at any of the App Store charts, whether it is iPad or iPhone, Angry Birds ($.99) is usually either near the top spot or at the top spot on both the top grossing and top downloaded sections.

The Rovio Mobile game, by many accounts originally inspired by a Flash game called Crush The Castle, is a worldwide phenomenon — some may argue it brought gaming to the spotlight on the App Store to begin with. It was released in late 2009 when the App Store was starting to take off with more varied games available at competitive prices.

The quick and addicting nature of the game, combined with constant updates with new levels being added, proved incredibly successful. The game had just the right mass market appeal and price to standout from the flock. It is even now talked about with newer editions being announced and ports appearing on various platforms from home console networks to dedicated portable gaming systems.

Incredibly, we learn from PocketGamer this week that the game may have surpassed the iPhone user-base:

“Rovio will soon be able to claim that its record-selling franchise is even bigger than the platform it started out on… The firm has revealed that total Angry Birds downloads now sit at 140 million, up 40 million on the 100 million milestone it passed in mid-March.”

So what does that mean for gamers? Well, tons of new levels to come!