One post referes to Harpoon (or Harpoon Classics to be exact), I am not sure how difficult it would be to bring this in by the number layers of menus and commands, I just don't want to see another game part (name forgotten) with dialogs and controls so small and congested which is simply unplayable. I think DEFCON may stand a better chance: http://en.wikipedia.org/wiki/Defcon_(video_game)
For Gauntlet try Dark Raider. It was actually a remake of Time Bandit (Atari ST and Amiga) which predates Gauntlet but very similar.
Flight of the Amazon Queen is quite well done, for those of you who are itching for some point and click action.
Monkey Island 3 works as a charm in scummvm. 100% playable with sound and music enabled, and all videos, fx etc etc... i am close to end the game for third time!!! I also end in my iphone Beneath a Steel Sky and Full throttle. The broken sword series also works with their videos etc etc... I have to say that i made the jailbreak just to play scummvm. Here is the game list: Compatibility list And here the app: App download Video: Full Throttle video