I wish the Vala folks would get going. 18 months ago, Vala, Go, and Rust were all possible native language successors to C++. (D was the fourth prospect.) But Vala has advanced so little, it's becoming an afterthought.
The web site is an afterhought that sits like an interloper on the GNOME site. The Windows distros are years old, etc. It's too bad. They had a good idea; they just failed to execute.
I agree with the sentiment. However, I hesitate to embrace Dart, after Google killed off a huge number of APIs earlier this year. Go seems to have much more traction at Google so I think it is safe, but Dart still has an experimental feel to it. I'd like to hear a long-term commitment from Google to Dart before I really jump in.