IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
I would guess the cost of a good quality touch-screen display at the 15-17" screen size that most people expect for a laptop is keeping the cost too high. There are those Dell Duo things, which is like a tablet that you dock in a laptop, but it is a little 10" screen and it runs Windows 7, and has no CD/DVD drive, HTMI output or SD card port. I've never actually seen one in person so I can't say much about it other than the fact that they are not very common, but the specs don't sound like what many enterprise users are going to want. I think Windows 8 may be great for this type of machine, but the hardware needs to be desirable too.