I have been researching touch screen options for Macs in an effort to assemble a music server that competes with a Sooloos type of system for a fraction of the price. I found this company called Troll Touch tat offers a few different touch screen options. You can get a MacBook or iMac touch screen mac. Troll Touch also offers Cinema Displays modified into touch screen monitors. For a music server I can see great uses for each of these three options. One very appealing option to me is getting the Cinema Display only and connecting it to whatever Mac I want. I would also use a VESA mount on the display to mount it on a moveable arm connected to the wall behind my equipment rack. I can see it now, pulling the monitor forward to navigate my library and pushing it back when done. This all sounds very appealing to me. However, I have one concern. How good will the iTunes or Front Row navigation be using the touch screen? I am guessing it will be the same as using a mouse which is kind of disappointing. If I could scroll through the cover flow album view similar to using an iPod Touch I would click "Add To Cart" instantly. Read more for a video from Troll Touch.
More at the Troll Touch site.