We are currently conducting some experimental publishing trials, so our advice for now is carry on developing your AppGameKit game and get it as polished as you can, then send us something we can play when you are done. If it's an exciting app, we might add it to our trial apps as we work out the logistics. Publishing your apps is pretty straight forward, we just have to work out the boring stuff like dedicating man hours to submitting your app to all the stores, collating all the revenue your app makes and ensuring you can track your profits and get paid promptly. Once we've got this smoothed out, we'll be able to reveal more about this service.
I drink tea, and in my spare time I write software.