Here's an interesting video review of the JazzMutant Dexter touch-screen
DAW controller.
http://www.sonicstate.com/news/shownews.cfm?newsid=5227
This brings up two thoughts:
1) I wonder what it would take to get this to work with Ardour. and
2) Couldn't something similar be done with Ardour or Rosegarden or
something else and a standard touch-screen?
vic