SenseSurface: Stick real knobs to on-screen virtual controls
Lyndsay Williams of Girton Labs has built this prototype "SenseSurface" system which allows you to attach real, physical knobs to a flat-panel display. The magnetic knobs are measured by a sensor plate in the rear, letting you turn the knob itself to control the software dials. It's all a test project now, but I could see some people really getting into this. (Although not on laptops so much as dedicated displays.)
Below, a short clip of a prototype SenseSurface knob in action.
Project Page [GirtonLabs.GooglePages.com via Blogs.Guardian.co.uk via Music Thing]

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That's pretty cool tech, but I don't see how it's any better than just mapping controls to a midi device and using the knobs there. Gives you more flexibility to move the screen layout around but keep the knobs in the same position. I hate having to adjust my knob.
That is cool. It better than a control surface, beace for one, it saves weight and space! I could think of more... But disadvantages...? How many buttons could you fit on your laptop or even desktop screen? Think of how big a standard sound desk is...
BBUT - Couple this idea with one of those funky flexible organic displays that are being developed, and I'm pretty sure you have a winner!
PONG!
I love it. Now give me sliders too!
ah, I have seen this demoed on a Microsoft Surface. http://qik.com/video/125619 look around 20:30
I think it is great because you can save screen real estate, you don't need all those menus cluttering up your screen and can have a large set of coded knobs for different tasks. It felt very intuitive. How are the knobs held in place in this demo? The MS surface is a flat table so it did not have to hold the knobs in place.
file under neat idea by someone who doesnt spend much time producing or only has minimal needs
It reminds me of the Powermate from Griffin, although I found infinitely more use from that piece of gadgetry as a page scroller than a volume knob.
combine with http://gadgets.boingboing.net/2008/07/15/optimus-tactus-touch.html
... I think there is potential
Really usefull and handy :-)
I wish to view some gears like this : http://www.arturia.com/evolution/smf/index.php?topic=2108.msg6695#msg6695