There's a new game for N-Gage on GameSpot, called Xyanide. It's an XBox port, and has completely 3D shoot 'm up gameplay. Gamespot has 20 or so screenshots.
Xyanide 3D shoot 'm up
Know its off topic but are the only exclusive ngage games ashen and marcel desailly soccer?
Off the top of my head: Pathway to Glory and Call of Duty are N-Gage only. Also from the list of newly announced games Glimmerati is exclusive. There's probably one or two more, but I'd have to check.
As to Xyanide, yes it's in development (we mentioned it back in January in our "Whats in Store This Year" article, but all the screen shots on Gamespot are 176x166, which is around 42 pixels short of full screen... something not quite right there.