Thanks for pointing that out.

I spent some moments on the problem and I now agree that it's not even close to usable, sorry.

Jalimo can be installed with a single click (and runs simple tests quite good), but for Opera Mini you'd need to mess with midpath or similar (packaged by jalimo, but lots of dependencies) to get MIDP support.
So probably lots of tinkering and you cannot be sure if there's any reward afterwards. Interesting anyway, though.