Xander's posted a great video of the Mindsensor Touch Panel in action.
He's done some great work developing a framework that allows you to create your own buttons (rather than looking for a specific x,y location).
More info - http://botbench.com/blog/2011/11/05/ui-frame-work-more-button-pushing/
While you're here, feel free to listen to the worlds most annoying Touchpanel based NXT noise creator (the worlds only???? :D )
He's done some great work developing a framework that allows you to create your own buttons (rather than looking for a specific x,y location).
More info - http://botbench.com/blog/2011/11/05/ui-frame-work-more-button-pushing/
While you're here, feel free to listen to the worlds most annoying Touchpanel based NXT noise creator (the worlds only???? :D )