I have thought about playing around with Windows on the pi but it doesn't seem like such a good fit.
I've seen projects for the raspberry pi where people make touch screen computers, and have to add something to convert the pi so it runs on DC...but I could honestly be missremembering that haha.
hmmm, ok weird. there is so much out there these days to get it working the way you want it.
I forgot to add they use the touchscreen and pi combo in a car. It's pretty amazing the diversity of projects you can use a pi or an arduino for.