In what its parent company DeNA describes as the first stage of a global rollout, developer ngmoco has announced that its social mobile gaming platform for Android, called Mobage, has been released today for a host of English-speaking countries around the world, as well as China.

Mobage's user population in Japan already exceeds 30 million.

Over one hundred mobile titles for Android that utilize the Mobage social functionality are in the works, "many of which will be debuting on Android for the first time," the announcement noted. Mobage gives players a "unified player identity," and helps gamers of similar tastes meet, play, and communicate.

The platform also helps developers monetize their games through the use of an integrated ad network and Mobage-specific currency for things like in-game items. The company also highlights a list of social titles coming to the Mobage platform from the "world's best developers."

Mobage will be supported with a slate of blockbuster mobile and social games from the world’s best developers, including Zombie Farm from The Playforge, Pocket God by Bolt Creative, Haypi Kingdom from Haypi Co., Pocket Frogs by NimbleBit, Paper Toss by Backflip Studios, Touch Hockey from Flipside5, Zoo Land by RockYou, Putt Putt Penguin from OMGPOP, Sundae Maker by Sunstorm, Texas Poker from KamaGames, Solitaire from MobilityWare, as well as hit games Tap Town from Gameview and We Rule by ngmoco.

If you're interested, Mobage can be downloaded now via the Android Market for free. I haven't had a chance to check it out yet, myself, but did notice that there are already a significant number of Mobage-enabled apps to check out, many of which are free.

Open Feint, another social network platform that struck big before Apple launched its social network "Game Center" application, is already available for Android devices.