Gaia has a new post up on Machinimatrix.org. According to the announcement they have reached the end of design and are going into a user-testing phase. Those that have filed trouble tickets on the Machinimatrix bug reporter will get their copies of 2.0-24 first. The rest of us, later.
There is a load of documentation in this announcement. So, check it out.
There are people using a 2.0 version for their main production tool. However, others are having problems. I think many of the problems are from a lack of documentation. It is hard to keep the docs up to date with an in-development product. Much less make the video tutorials.
If AvaStar 2.0 finalizes we will start to see more tutorials arriving.