I've just found out that PSM is being discontinued, so my job has become a whole lot harder.
Firstly, as consumers, you should download any PSM games you wish to keep before it is closed later this year: http://www.playstation.com/en-us/explore/playstation-mobile/
Secondly, this is a double edged sword... This means we will be moving over to Unity 5, which is great. The bad side is that we will need to become registered PS developers and hope that we are lucky enough to get funding or a loaner dev kit.
In summary. Life is now harder for a small developer like us, we will need to rely on things like kick-starter and Sony's loaner dev kits, its tougher, but not impossible.
Thanks for all your support, we are planning on showing off our new game extremely soon.