I don't have anything to offer in terms of helping with programming or anything but I will say that I think that is is exactly the type of game that would do well on this platform... That is, a graphics supported, non shoot-em up type game.

This is the kind of thing that found it's way into the Palm OS platform and did well even though there was a high pricepoint on it. It was not uncommon to pay $19.95 for a game of this type.
I'm glad to see you are doing this.

Come to think of it, are there any card games on Maemo?