Angular 2 is now in Beta watch angular.io, the Angular dev team says "Beta means we’re now confident that most developers can be successful building large applications using Angular 2. "
watch Blogspot.
Angular2 Meteor integration is now in Alpha but this is only the integration, angular2 release in the package is the current beta.
We are working on a medium scale app with a web platform to, we do this with angular2 + ionic2 and meteor for the app and semantic-ui css for the web.
All of this Frameworks works great and we not found critical issues.
PS: Official Angular2 release is coming in the early 2016.