[fivetanley]

While Object.observe will be a welcome change, that basically means that your app can never be as performant as possible due to the design of the framework that you use for browsers that don't support Object.observe (dirty checking is NOT optimal). Using .get and .set so that all operations happen in a run loop seems like a small price to pay.

While I'm with you and love being able to write my own simple classes and POJOs, ultimately I'll value being able to support users who won't or can't upgrade their browsers.