heh...I actually got to play with a working version last Thursday, since I'm going to be a marketing rep for the N-Gage in my area..."N-Gage Special Forces". Stupid name, I know, but hey, the $$$ they pay me speaks for itself. 🙂
And the handheld was surprisingly competent...and this coming from a longtime N-fanboy. The form-factor is really slim, with good sound, built-in FM radio...MP3 player from MMC, and you can use an MP3 as a ring tone, which was nice. The screen has a good resolution, very bright...Sonic played pretty well. The button layout was a little much, but it wasn't too bad.
I'll have a better impression once I get my own, which should be in a week and some. 😀