Update: Google + with Extras lets users share their screen during a hangout.
Host clicks on “Share” button on Google Chrome, invites users (thru an url) to instantly see his tab-content from browsers on multiple devices (tablets, smartphone, desktops etc.,)
Contextually, users will be able to collaborate/communicate by using ‘seamlessly integrated’ IM, web cam, ‘dialed-in’ VOIP/phone/ video calls etc,
Update 1: Just paid $5 developer fee on Chrome Web Store. Getting slowly started with the browser extension code.
Read related discussion on Google Chome Help Forum
Update 2 : Planning to start with a simple non-secure page. Looks like the DOM dump or serializing the DOM approach isn’t feasible for now. Setback.