This one's brilliant!

Too bad it runs a little on the slow side on the IT's, but it's really addictive... even though I suck at it (haven't beaten the 50 yard mark, yet).

Also, about Doom, I keep it as proof of concept, to show off the N800's abilities, because I just can't play it well enough on the IT. I try putting the stylus right on the crosshair so I can aim a little better, but it's hard!

And I even have the original soundtrack by Trent Reznor to keep me going