As far as choosing from multiple deck setups, I've come up with some pretty cool tricks that make use of the newly added multiple-piece-types. If you are ever interested let me know.
I know of at least one other similar game in the works. I think that one thing that has kept more ports from happening is the difficulty in image creation. If you've got all of your images already, you're in great shape, but if you had to make them all, it would be a huge effort. Putting them all into EveryGame could also potentially be a tedious -- I definitely recommend using the Easy-Game-Maker instructions to get started, so that it creates a basic xml file with all of the cards (pieces) for you to start from.
Another possible reason that games like that have been slow to take off is that many are suited super well for pass-and-play. With Bluetooth play in the newest version though, I can see them being more appealing, and depending on the level of interaction, play-by-email could work well too.
The new version of EveryGame also includes some new actions, like cycle_side and cycle_rotation, that are specifically made for games like this, letting you tap / untap with a single action, which you couldn't do before.