They had a bunch of these at Big Lots some years ago... Think they were ~$100. So yeah, I've seen a few of them. They didn't do anything for me at all.
Oh yes! Large touch screens are available on some. The wife's embroidery machine connects to her laptop via USB. That sucker was almost $1000... The ones with the big touch screens and built in software make that seem very cheap. There are some design station type units that cost as much as an economy class car.