We now have versions of Ascension, Nightfall, Dominion, and soon MtG on iOS. Time to get a move on and give us a mobile version of aGoT. Heck I'd even take a dumbed down version like MtG did with DotP. If you are worried about delicate timing issues, maybe only include the Core decks with the ability to unlock other pre-built decks so you can control which card interactions need to be coded.
You already did Elder Sign. Give aGoT some iOS lovin'!