San Francisco-based iPhone developer ngmoco has raised $10 million in a series B funding round.

ngmoco was co-founded by former Electronic Arts exec Neil Young last year, alongside Bob Stevenson, Alan Yu and Joe Keene. The company is behind iPhone and iPod Touch games Rolando, MazeFinger, Topple, Topple 2, Dr. Awesome, Dropship and Word Fu.

The completion of the funding round, led by Norwest Venture Partners, follows soon after Apple's announcement that over 6,000 iPhone games are available on the mobile's App Store.

Tim Chang of Norwest Venture Partners has joined ngmoco's board of directors. He stated, "The iPhone represents a significant milestone in the growth of the mobile gaming market, and has the potential to be the next mainstream gaming hardware platform."

ngmoco said it will use the funds to "expand its pipeline of premium games and accelerate the development of its publishing and social gaming platform for iPhone and iPod Touch connected gaming."