I've skimmed the thread but it is far too long to read it entirely. If I'm repeating any questions, I apologize. Perhaps a FAQ in the first post would be a good idea.
I'll put this in the first post as well.
Q1: What's the main differences between your version and the leaked Disney version?
The leaked Disney version is a beta version with some features missing: saving the hi scores, some sounds are missing. This version has everything the original version has, all the sounds (and some extra movie sounds), saves hi scores, works on all resolutions (horizontal and vertical), works in cocktail mode (screen flipping) and uses hlsl shaders to make it look like a crt on a lcd screen.
Q2: Is this going to be available to the community?
This is a community project. A lot of members helped with the beta testing, bug fixing, graphics creation, sound/music creation and some of them even went to Disney Quest to get footage and sound recordings from the original game. For obvious reasons, there is no download link.
Q3: When?
Short answer: never. Long answer: Never, unless Disney allows the distribution of the software.
Q4: What kind of PC specs are required?
Basically any pc with a DirectX 9 compatible video card.