Epic Citadel (http://itunes.apple.com/ca/app/epic-citadel/id388888815?mt=8) Is a Program Using the Unreal Engine on the iPod, iPhone and iPad, First thing I thought of when I seen this was URU for iPhone, or something similar. If you look at the graphics and how this works I think it would be a perfect environment for a thinking game like MYST/URU. I know it probably wouldn't happen but I thought it would be interesting to mention it here and see what others though.