Is/will there be a way to interface with the accelerometer? Could we get functionality to dynamically resize and reposition sprites based on how the user is holding their device? Maybe even get some sort of "pan" functionality that can be used to "look" a whole sprite up and down, rather than just stare at the torso the entire time?
And just how interactive is the touch screen? Could we get down to the level of moving individual sprites around? I could certainly see such a function being useful for scenarios in which stripping clothes off of a sprite could be done with the flick of a finger. Er, not that I would personally use such a function. I'm just, uh, you know...trying to think of the good of the Ren'Py development community. Uhm, yeah.
Personally, I'm thinking more along the lines of a screen with a character sprite, and then other assorted sprites, like a bouquet of flowers, a box of chocolates and a necklace, and the user would have to "give" one of them to the character by dragging and dropping onto the character sprite...which, if the correct item is chosen, would lead to the stripping...