As it stands, these are the only emulators KaiStore has:
And almost all of them are made by this as more of an experiment:
I mean think about it. Libretro could be the basis on this store for what can run J2ME, N-Gage and even MiniJ and Siemens.
But I’m just spitballing. Being that Kai is technically based off of Firefox OS, it could be interesting to look into.