Had one for a while as you may recall. I received one as part of the big Pocket Kingdom promotion we were doing on I-Mockery.
http://www.i-mockery.com/giveaways/pocketkingdom
That was a nicely done game, but I didn't have the kind of time to play a game like that. As busy as I am these days, I mainly play games like Tetris 'n what not... fun games that you can just pick up and play for a half hour or so and then get back to work or whatever.
The NGage was decent, but it clearly wasn't competition for the other handhelds on the market.