I think this could be successful because it lets people interact live with elements on the page. This is one thing that Adobe BrowserLab fails to do (http://for

I think this could be successful because it lets people interact live with elements on the page. This is one thing that Adobe BrowserLab fails to do (http://forums.adobe.com/thread/725431?tstart=0 http://forums.adobe.com/thread/725431?tstart=0 for example). You may not want to answer this, but how will this service scale? Booting an individual VM for each user seems incredibly resource intensive. (disclaimer: I interned on BrowserLab)