Yes i do.
In fact the girl who helped me, she already created a bomb gun that rips the surface apart like crazy, looks like a bunch of creepers had a party. And its really fast to destroy many chunks at once.

I already got single block placing/deleting down. Texturing actually works already too (i use the 512x512 doku rpg texture as atlas map to save drawcalls), but they only use the same tile right now, still have to change it according to their tile ID.

We will see how fast this is with all the code going into it. But once i've got something playable, i'll post a webplayer link.