I have some issues getting the Shuttle Thunderbolt to work.
The Shuttle is installed properly, and all Macs are able to see it and change settings in System Preferences.
On a Macbook Pro Retina 15" with 10.8.2, I am only getting a black screen.
On a Macbook Pro 13" with 10.7.5 and Macbook Air with 10.7.4 I am able to get HDMI input but the image is flickering and the sound is choppy. Here is a video with example capture:
I have tried all possible settings, and also RCA input, all not working (all I got was a black screen, or blue screen on some RCA input settings). The above video was captured on 720p/50 with the Blackdesign capture software. I don't have other software, but I did select Blackmagic 720p/50 as video input in Skype, where is performs similar - video is flickering. So it's not a software issue, maybe drivers or the hardware?