While scouring sites for new apps for my curve, I stumbled across a great NES emulator that i have been running for a few days now. Though it lacks full screen visibility (on my curve at least, it has 2 black bars down the sides) it does have its upsides. It comes packed with some of the most influential games in history (Castelvania 1&2, Donkey Kong, A variation of Super Mario Bros (called Link Bros) Spy vs. Spy, Contra and of course Zelda. Buttons can be mapped to which ever you prefer and it runs pretty smoothly on my curve. No luck adding additional roms yet, but with this selection I should be good for a few more days.
The download for this can be found on Pinstack.com - Where Blackberry Professionals Connect!
under downloads and was made possible by V8 (gotta give props where props are due).