Artisteer 3 documentation is coming soon.
I have no immediate plans to work on Razor support, if you think that is important then make the case for why it has value. To me it is just another way to do something that is already possible and it does not scratch an itch compared to other things I have on my list that need to be done. As an open source project if someone wants to implement Razor support and contribute it to the project that would be very cool and I'd be supportive, but it is not a priority for me personally at least in the immediate future.
Best,
Joe