I'm really liking Sony's PS4 controller ideas.
PS4 controller: (clickable?) touchpad + share button + dualshock
Sources close to the hardware have revealed to us that PS4 will ship with a redesigned controller which is the same size as an existing DualShock but features a small touchpad in place of the existing Select, Start and PS buttons. The tech is based on Vitas rear touchpad, and is similarly responsive in use.
A new Share button on the controller will, when pressed, launch a new feature that will allow screenshots and video to be distributed online. The PS4 hardware will continually record the most recent 15 minutes of onscreen action (with no processing penalty, claims our source), which users will then be able to edit and broadcast via the Internet.
"British site CVG speculated last week that, because they'd heard the PS4's controller was "trying to emulate the same user interface philosophies as the PS Vita", that meant it would feature a touch screen. Instead, the Orbis' controller features a capacitive touch pad, like you find on the back of a Vita (presumably it's also on the back of the PS4's controller), that can recognise two-point multi-touch. The entire pad can also be "clicked" for an additional input button."