There are some really good games on igadget but they are rare. So its possible to make them, but mostly whats made is trash like 20-30 years ago for 8bit computers. Many of the games on ipad have roots on classics of that era.
I have like 5 different kickstart variations on ipad. Funnily enough graphics excluded none of them is equal to the original (played it recently):
http://www.mobygames.com/game/kiksta…road-simulator
If they cant make a proper kickstart even then hopes for good ultima are hmm…not all that good.