Now that he shiny new version of Unity 3D (2.5) is out in the flesh, there is more info appearing for it all the time. I am too busy at the moment to grab it and give it a run for its money, but there is a nice little interview on the Area with David Helgason who covers features and directions of this major release.
The interview covers some very interesting ground with respect to the link between the editor and 3D apps like 3ds Max and Maya and even photoshop for texture work. This could make life very nice indeed for building 3D environments and gaming work.
Here are two of he many shots of the interface in action in the interview:
[2 shots of the Unity3D 2.5 engine in action from the Area's interview]