Nokia has scored backing from THQ Wireless and Indiagames as it launches the SDK for its new N-Gage games platform.

The publishers join EA Mobile and GameLoft, who have both already signed up to bring content to the service.

Announced at GDC Mobile today, the company has also secured a number of games brands for its devices, including Gameloft's Asphalt 3, Street Rules, Brothers in Arms Hell's Highway, Brain Challenge, Midnight Pool and EA's FIFA 2008.

Meanwhile, updated software development tools for the N-Gage platform and a new testing program for SNAP Mobile's Java platform are rolling out.

"The availability of the N-Gage SDK 1.0 today is the corner stone of Nokia's new development eco-system for developers to create connected mobile games in a familiar C++ environment," said director of technology and strategy at Nokia Games Publishing Mark Ollila.

"This single development channel impacts positively on development cycles and budgeting as well as creating new social connected gaming experiences that will lead the way to how people discover, buy and play games in the future."

Added Gregg Sauter, director of games publishing at Nokia (who will be speaking at a session deadicated to the new N-Gage at GDC Mobile tomorrow, Tuesday March 6th): "We are reinforcing our commitment to this industry with two significant initiatives that will help the mobile games industry evolve.

"Our N-Gage platform will deliver a global games platform that leverages the performance of the tens of millions of S60 converged devices that we are shipping each year. Likewise, our support for Java development continues to evolve with more tools for developers supporting SNAP Mobile."