To add to the discussion above, I feel that TCAS isn't much of a deal. I have yet to actually use it in vatsim. I feel that there aren't that many players in vatsim to have TCAS be a useful feature. When there is no atc, the airspace is usually pretty empty, and when there is atc, atc usually has good control over the airspace. Just like chevy said, if something does happen (which is quite rare) it is a sim and no one is hurt.
About the list of V1.0 features that won't be included, I would like to have wing flex added after 1.0 (I do x plane 10 videos so wing flex is a very nice touch for me). For the 3D modeling, the opening and closing of the doors are pretty high on my priority list as it adds a nice touch considering I have the ground services deluxe.
Great work guys and I can't wait to fly this plane! Just don't release between April 11 - 23, I have exams and I would need to focus on passing ;P