The next-generation N-Gage platform is available in the Nokia N95, N93, N81 and N73 devices. It takes the high-quality gaming experience that users of the original N-Gage gamedeck devices enjoyed, and allows owners of a range of S60 smartphones to easily discover, purchase, play and share those games. The new platform is distinct from that found in the original N-Gage gamedecks, and targets S60 3rd Edition phones only.
There is a thriving community at N-Gage Community
There is much more to come! check out the n-gage FAQ
Much of this work is done in the Forum PRO N-gage zone so may not be have early opening to individual developers.