Medium the new social media site by creators of Twitter and Blogger

Has anyone had a look at the new "revolutionary" social media site Medium? It is the newest creation of the guys behind Twitter and Blogger. They say it is going to revolutionise online publishing, but from my first impressions it just looks a lot like pinterest and a little bit like Flickr. Would be interested what other people thought about it! Essentially the site looks like it allows people to post their pictures, videos etc and they are then collated into groups according to themes and people can rate them.