will allow for entirely new forms of spontaneous collaboration ... that require pre-packaged apps to be added as plugins to mom and dad's browser, then e-mails

will allow for entirely new forms of spontaneous collaboration ... that require pre-packaged apps to be added as plugins to mom and dad's browser, then e-mails sent containing urls to their new service, then mom and dad not turning off their computer and having a good enough connection for whatever type of app they've installed. (Rule out real-time with my parents' place.) As opposed to our current model where the app writer hosts said new form of spontaneous collaboration (e.g., twitter, skype) on servers and mom and dad discover the service through word of mouth. Then mom and dad install clients where appropriate (e.g., twitter on both computer and cell phone, or skype on macbook with built-in camera). And then there's Google Wave which seems like a better platform for new forms of spontaneous collaboration (more robust, easier to determine recipients/access, open & published protocol). The main benefit of the Opera system seems to be the app/service store, which adds discoverability, and the url namespace through its proxy service. If there is a market due to these strengths, I'd expect Google's new Wave platform to do better.