>> 6. On that note, move +1’d sites into a users main Google+ activity stream. Again - networks are all about the Social Objects and +1 is Google’s method for sharing. Why hide it away in a separate tab?

Please do not do this. There are already options to share sites on Google. Also, everytime I +1 a site on the main search page, I don't want to have to specify which circles can see it--nor do I want everyone to see it.