Your suggestion certainly makes sense for the increasing number of tablet-users,
but people with ordinary pc's/macs will still prefer the classic looks IMHO.
Either way, there should be a choice to use the classic default interface or
a more touch-friendly GUI.
Not sure if the people at Arturia have the time to do a total make-over...
But how about a dev-toolkit, with which people can design new, more touch-oriented GUI's?
It might boost involvement and contributions from the user community, as well as attract
a new generation of noodlers
Mind, I would only limit this toolkit to customizing the GUI.
IMHO something the devs at Arturia could cook up with not too much of a fuss