Yes, it is still in development, a 1.9 version is on the way.
I updated the engine and added an example that uses an important function for 3D games In the next update I will remove the "i" before each function (we know it's Irrlicht, it's not worth repeating it every function )
Greedy Mouse was not even the worst game port over to html5 and only was contains minor issues. Yes, the tile size in that game is big, hehe (200x200px).
Im could only uses one size (the game could uses 3 sizes, 50, 100 or 200px) for that port throught (the biggest one of course), due user could resize in any size.
Today im have 7 games, all using the scripts from the posttool im have done. Yes sound was quite too loud in Cave Hereos. But im do not touch the rest throught. (im not sure which games you talked about, hihi).