Dell one has multi touch as an option and Fingertapps are right on this

A lot has been said already about the One however what I like about this line is that there is a multi-touch option (comes with a keyboard as well) that would make it a good choice for a kitchen or family room PC. Because the system is an all-in-one it also is a spacesaver. The system I saw also has Cozi.com Family Calendering system loaded. The starting price of $699 is friendly on the budget. Listed below are some specifications from the Dell press release.

Software from Dell:

• Easy multi-touch photo editing, slideshow creation, playlist compilation, notes, and even web browsing.
• Unleash creativity with You Paint finger painting software.
• Record videos and upload directly to YouTube with the touch of a finger.
• Flick to Flickr – Upload photos to Flickr to share with family and friends.
• Create a musical masterpiece with the multi-touch percussion center.
  

Technical Specifications:

• Intel® Celeron, Dual Core Celeron, Pentium Dual Core, Core 2 Duo, and Core 2 Quad Core Processor options
• Choice of nVidia GeForce 9200 or GeForce 9400 integrated graphics
• Up to 4GB dual channel memory
• Up to 750GB HDD
• Slot load Optical drive
• 7-in-1 media card reader, six USB ports
• Optional integrated wireless, web camera, Blu-ray Disc™
• Optional multi-touch capability
• Optional facial recognition security (with webcam)

But besides all these specs (that we all already know perhaps) the good thing is that Fingertapps is right there on it! Fingertapps are in fact the developers of the Dell TouchZone software, the application suite that provides the focal point for the touch experience on the Studio One.
TouchZone makes full use of the touch hardware to introduce some handy new gestures and 'actionable touch' behaviors (it's not just about resizing and rotating photos you know!). So this is kind of promising news