Sorry guys, only just seen your messages.
With Kai-Os it's been an interesting journey - the figures aren't massive tbh, but the market is still fresh and it's a good time to get in nice and early
In some degree, making games for the platform is easier because you don't have much to play with in terms of real estate, performance, IAP purchases and all that jazz, on the other hand, Stencyl doesn't perform that well on the devices, not sure if it's the Haxe layer, but it really doesn't like physics, actors being created or scene changes, so you're kinda forced to keep the game simple.
Setting up the dev environment was a nightmare tbh, but once it's set up, if you don't touch it, it's fine.
I'm focusing on another game for now, but once I'm done with it, I will return to Kai-os because it is fun building quick, simple games and as I say, their market is growing so it's good to get in on a new paltform
Feel free to ping me questions or whatnot if you want to know more or specifics.