In an attempt to attract developers to the NGage gaming platform, Nokia has launched Mobile Games Innovation Challenge, a competition with three top prizes, and a promise of publishing contracts and even featuring the game on Nokia devices.

The Mobile Games Innovation Challenge is a unique global competition designed to encourage the development of innovative game concepts with the power to positively disrupt the global mobile gaming industry and help propel mobile gaming with handheld devices into a new and exciting future.

From what I read in the forum, the games can also be built based on Java or Symbian-based S40 or S60 devices. Not sure exactly what Symbian S40 devices are out there...