The Pro, much like the classic Slingbox, features an analog cable input, as well as an S-Video input.

ENGADGET: Slingbox PRO hands-on

Both LCD ViewPanels incorporate two digital inputs and two analog inputs as well as a video input.

CNN: Comdex: Monitors show dual analog/digital skills

They can also be used for different functions as users can watch a video on one screen and input commands on the other, or check email on one screen and use the other as a soft keyboard.

ENGADGET: Sony S1 and S2 dual-screen Honeycomb tablets get official (video)