The crew at Mailgun are kinda doing this, and its been enabled by vulcan proxy:

https://github.com/mailgun/vulcand

At first, sure, Vulcand is just another reverse proxy, but what they have been doing is registering individual HTTP handlers with the proxy -- into etcd:

https://github.com/mailgun/scroll

(there is a python implementation somehwere too, just can't find it)

What's neat about exposing these individual HTTP handlers, is now your reverse proxy can produce metrics, apply circuit breakers, etc, all in a central way, but your "micro" service just has to register with etcd:

http://blog.vulcanproxy.com/vulcand-news-circuit-breakers-be...

So, you end up with an architectural style where you can deploy a single HTTP handler as its own service, similar to what the article was pointing to, but in a multi-lanaguage approach, where HTTP is the communication method.