Recently, I noticed on my Samsung Note II (Best phone or phablet EVER) that in my search box, there were items in my history that I did not search for on the phone. This peaked my interest and I quickly realized they were searches that I did on my desktop earlier. I was logged into Google on my Desktop and on my phone through Android.
Thinking back to my early post on Google+, http://www.pubcon.com/why-is-google-plus-relevant-for-all-businesses, this is another feather in the hat for Google+. If we get to an always logged into Google world, there will be other ways to track Web usage by a person regardless of the device they are on. The screenshot above is only a glimpse into how connected (and trackable) our future is!