Earlier quoted context omitted.
I just do cmd+shft+p > Install Package That gives you instant search.
The benefit of an online listing is easy access to package descriptions and repositories. When there are multiple packages for a given task, I'd like to know which is more heavily updated and supported. Correct me if I'm wrong, but I don't believe there's a way to open the Github page from that menu.
I'm very excited about the launch - with any luck I should have something to show off in the next couple of days!