Brian Huppy, one of the iPhone designers has announced that the next generation Apple mouse may dump scroll bar or buttons for touch housing. It may have the capability to switch between operational modes based on user's grip on the device.

The new Apple mouse is expected to come with two modes:
The first mode of operation could be a cursor control mode.
The second mode may be a pan or scroll control mode or both.
Just like the Apple's Mighty mouse, the next gen mouse is anticipated to boast one or more concealed buttons that provide a clicking action for performing actions on the display screen.
The patent application is under the review and if this meets realism, the new Apple mouse will indubitably be a cool device to work with.
Via: AppleInsider