My main feeling about this is not so much about typeScript (which, meh, some syntax sugar I don't care about, and tooltips for an IDE I don't use) -- more it's that just the mere whiff of Microsoft's involvement will be enough to snuff out remaining developer interest in Angular 2.
I remember being a MS hater as a kid. Now I hate all the big software companies. Just some more than others. And MS is heading in the right direction these days, so I'm optimistic. Hopefully it'll stick.
