Can't find the Docker IP

I’ve just installed the Docker for Mac beta. It seems to be running without any problems.

But I can’t find the IP I could use to access my containers in a browser. I thought /etc/hosts will be updated, but it’s not.

So my question is - how to access containers via a browser? How to find out the IP?, on current betas.

Per the Getting Started nginx example, you use localhost now, no need for a special IP address.