Wow, that's a game-changing feature!
New! - Highlighted square if a mouse which is holding a piece is hovered over it
Do you remember some time ago, Chess.com changed something major and there was quite an uproar against it? I can't recall what it was all about.
I recently saw a Chess.com TV show where the players were cheating by hovering pieces over squares before actually moving them. One of the players even had a master rating of some type and on at least 2 moves, he did this, then put the piece back.
Seems there should be a touch rule implemented in the software.
If they implement touch-move, then what do you do if your mouse is being buggy?
I don't know. Get a new mouse maybe?
It's nice on the computer but tricky on the mobile - not app. You've had a hard time to move them before, now they're flyin'round! :D

I just found out chess.com implemented another nice thing. Try it yourself.