Who knows how this development might have a really positive effect on teaching? If successful, perhaps somewhere down the road it will become advisable for young students to begin on a 7/8, much the way young violinists start out on those adorable mini-violins.

As for me, I'm happy with the conventional size! \:\) When I was trying out pianos, I played on a Mason and Hamlin that had slightly larger black keys, and I found my fingers too big to easily maneuver between them.