Core77 is featuring an article about a collaborative project between Ignition, Texas Instruments and Southern Methodist University students/users to design next-generation digital projectors.
In, The Future of "User-Designed": How one company worked with end-users to design their perfect product, by Bryan Hynecek, ininitial design concepts were created by gaming users - in this case master's students in video game development - and then reviewed and improved by the professionals.
One might question whether using master's students in game development is truly "user-centered" in the sense that these might not be considered novice users. On the contrary, I applaud the selection of a targeted, expert end-user sample who have clear interest and motivation, but are by no means product designers. Decide for yourself.
Also see previous, related articles on user-driven innovation: http://humanfactors.typepad.com/idsa/2007/03/userdriven_inno.html