A: It’s already in development. Stylistically, the left hand 10ths are probably more important but you do sometimes see 10ths in the right hand with some jazzers – even occasionally, in classical. Solid 10th and beyond in both hands would be the ultimate package. As it stands, a two-handed Thumbdrop will have to wait for a later product phase. Hopefully. the piano community will get behind us with the opening phase and we can develop from there. But yeah, I look forward to the day when cats are pounding out two-fisted piano up to solid 12ths in both hands.