I'm resisting saying Write once, debug everywhere. This sounds cool, but the road to this hell has been littered with many failures.
Dammit, there goes my resistance. Which apparently is futile. I'll show myself out.
If this does work its a cool things. Just microsoft needs to make c# and the .net framework open source and actually cross platform. Mono is a non starter for a lot of places.
"write once, run anywhere"