Kalemsoft has released NesEM, a Nintendo NES emulator for webOS. The application is a port from their popular Palm OS app. NesEM allows you to run over 300 orginal NES games include PunchOut, Super Mario, Legend of Zelda and more. The application does not ship with the ROM’s needed, but those are available by searching the Interwebs.
NesEM supports four channel sound, game saving, automatic speed adjustment, key config control and anti-aliasing image smoothing. You can download a demo from Kalemsoft or from within Preware. The full version retails for $9.99.
For obvious reasons, this is not available in the Palm App Catalog.
So if classic gaming is your thing, you’d be hard pressed to find a better value than NesEM.