Completely agree that the Polymer Material "look and feel" is really nice and well thought out. The WebComponents ideas it is based on gives me the jibblies though.
You could do the polymer look and feel with the react update model via famo.us (disclaimer: I work for famo.us). Famo.us also plays pretty nicely with Ember.js (tutorials coming soon) and React.js.
That's not really doable. I'm building a React based component/widget system for work and assuming all goes well and I can OSS it there's a reasonable chance I'll build out a Material/Paper widget set since I really like this set of design guidelines.
You could do the polymer look and feel with the react update model via famo.us (disclaimer: I work for famo.us). Famo.us also plays pretty nicely with Ember.js (tutorials coming soon) and React.js.