Artists want something like a cintiq tabet from wacom which has pressure sensitivity AND the ability to take it with you and do all sorts of stuff on it like you can with an ipad… I suspect something like this will come eventually, but it won’t be any time in the near future because so many folks behind smart phones and tablets use gorilla glass and other stuff like that which won’t ever allow this sort of stuff, even if it is study and helps stop scratches. I’m sure someone will come up with a solution eventually. … but unfortunately it’s not coming fast enough.