Avid recently introduced a pretty cool accessory for Pro Tools called the Pro Tools | Dock. It's a unique controller that takes an iPad and marries it with controller hardware to give the user the ability to edit and mix at a faster pace.
The Dock is based on the advanced touchscreen workflows on the Master Touch Module of the S6 (Avid's high-end console controller) and basically shows a super-channel view for fast navigation, metering, and on-screen plug-in control . The hardware of the dock includes dedicated automation switches, transport controls, a weighted aluminum jog wheel, and color-coded Soft Key switches.
The Dock’s eight soft knobs can be used to control parameters like EQ, Dynamics, Panning, and Sends on the Attentioned (focused) channel, just like the S6 Master Touch Module. ‘Attentioning’ a track is done just by touching the track tile on the screen and it brings it to the fader.
The Pro Tools | Dock works with EUCON-enabled DAWs and video editing tools, including Pro Tools, Media Composer, Logic Pro X, Cubase, and Premiere Pro. Retail price is $1,199, not including the cost of the iPad. It won't be available until the end of the year though.