implement AsyncPipe

[Hotell]

For flawless integration with ngrx/store and Observable services async pipe can come handy, so you don't have to manually subscribe to store or Observable

https://angular.io/docs/ts/latest/api/common/index/AsyncPipe-class.html

[JamesHenry]

Just scanning release notes today and thought I would log this before I forget...

They added the ability to provide an onError handler to the async pipe in RC2: angular/angular#7990

I think this will require moving the optional "scope" in your original implementation

[Hotell]

thanks for the heads up! will do :)