I find it weird that [mathoverflow.net](http://mathoverflow.net) is not a part of SE 2.0 sites. Any reason why?

The software behind [mathoverflow.net](http://mathoverflow.net) is a bit old, and it can use some updating. Don't you agree?

**Edit: One of the thread I found on MO meta is [this](https://meta.mathoverflow.net/discussion/454/linking-in-with-stackoverlow-al/), which leads me to [this](https://meta.stackexchange.com/questions/56514/any-updates-on-stack-exchange-1-0-migration). Now a few months have passed, what is the latest development?**