Okay, here's the word on all that CAN HAZ KS ON MY TOASTER? stuff.
0. This is just my opinion but since I am the dude handling all technical aspects of KS my opinion counts for a lot.
1. We will not jump though the hoops of anyone to get it released on a platform. Approval required = lol no
2. We won't do a version that does not work on the target system out of the box. Hardware hacking/voiding warranty = lol no
3. We will not allow anyone to reimplement the game in another engine. Ignoring our license = lol no
The license only forbids dicking around with the game content. If you reimplement/port the Ren'Py engine (which is open source) and KS happens to work with that, that is perfectly fine. Redistributing a changed version is not. I will take no steps to make the game incompatible with a stock engine, but will spend no effort in supporting more than that either.
Also I have nothing against Apple's business model (or Sony's or Nintendo's for that matter), but no hoop jumping unless there's a pot of gold on the other end, which will not happen for KS.