"Riot is an incredibly fast, powerful yet tiny client side framework for building large scale web applications. Despite the small size all the building blocks are there: a template engine, router, event library and a strict MVP pattern to keep things organized. On a finished application your views are automatically updated when the underlying model changes."
This library shows some promise. This is what Jehan Tremback has to say about it:
Riot.js is pretty amazing. All the pieces came together last night and I now have an app that's about 2/3 the length of what a backbone implementation would be. Riot.js itself is only 90 lines.
And anyone who wants to get in on the ground floor as a framework contributor- it's less than 2 weeks old