Introducing Mavo: Create Web Apps Entirely by Writing HTML (smashingmagazine.com)

The projects site is here: http://mavo.io/

The most interesting part to me is the integration of RDFa -- not just adding semantic marks, but using them in data binding etc.

Is there any plan to support microdata?

Also, how does it interact with existing JS libraries / code? IMO it will accelerate its growth if it can be used with current technology.