It seems like there’s an audience among older people and possibly children, but I don’t see a situation in which a professional at least would really or want a touchscreen. Do you really want the oil from your fingers constantly smudging up your screen, particularly a glossy one? Unless it comes with a pair of complimentary Apple windshield wipers, it's gonna get gross fast.
The only situation I could see it being useful in is if it came with a pressure-sensitive pen, so you could use it for sketching and drawing. But even then, that would only really work well if the screen folded all the way around, so it would sit flush against the base or if it opened 180 degrees, so you could lay it flat on a table without it wobbling around on a hinge.
The only situation I could see it being useful in is if it came with a pressure-sensitive pen, so you could use it for sketching and drawing. But even then, that would only really work well if the screen folded all the way around, so it would sit flush against the base or if it opened 180 degrees, so you could lay it flat on a table without it wobbling around on a hinge.