Ask HN: Docker hub for Microservices, would you be interested?

As docker distribution tools are open source, should be relatively easy to create a specialised docker hub for Microservices. Imagine doing docker pull microsrv.io:foo/bar it should work out of the box with current version of docker. Plus a website to find Microservices by tags or categories related to which monitoring, logs, autodiscovery mechanism implementes and which api is exposed(hal standard ?). Maybe a community standard could emerge out of this if people starts to share those Microservices. Having templates as docker images when starting a new Microservice would be also very cool. Do you know something similar that already exists ? Maybe It doesn't exists yet for a reason, why ?