My personal jury is still out when it comes to computers with built-in touchscreens. On laptops, sure, go for it. On desktops, eh, I don’t know. Take the Shuttle D10, for instance. It’s got a 7-inch LCD screen built into it. Okay, I guess, but the screen’s only got an 800×480 resolution according to Akihabara. You’re gonna need to hook a monitor up to it no matter what.
I could see this kind of thing being useful for, say, a car PC project or maybe, just maybe, a media center-type thing. As far as pricing and availability goes, it appears that the D10 will be available in Japan this week with configurations starting at just under $500 US. Not sure if or when it’d make it stateside, though. Most of the Shuttle stuff ends up here sooner or later, though, so we might actually see this thing.
No mention of an actual monitor output, so you may have to add your own graphics card if you want to use more than just the 7-inch screen.