A "save and share" system might be a more feasible stepping stone. It wouldn't be true real-time collab, but it would allow easier project sharing and potentially some back-and-forth editing.
Whoa, dude! One year and a perfect score on your first Notch?
That's awesome! Seriously impressive stuff. I'm super hyped to hear what you've been cooking up for your album. I know it's gonna be killer! Keep it up, and can't wait to hear it all!