This app is a scam.
I agree with the previous poster that all of the positive reviews must be from employees as this app does not work at all.
I have a brand new machine running a clean install of 10.8.2 and FCPX 10.7 and on the few occasions that I can get the app to connect to FCPX the interface does not control any FCP functions. The jog dial occasional will scrub the audio but does nothing else. This app is a complete scam.
Whats worse is that they have no support available on their site - no FAQs, no forum not even a troubleshooting section so you cannot get any support from them.
Stay away, and save your money.
Parrot Freak about
ProCutX for Final Cut Pro X