“Enrich Your Experience”
Google already tracks your data on all the products you use. Now those products can share information between themselves to enrich your experience and market to you better.
In what way will allowing Google to interpolate data they’ve mined from my documents, email, web searches, YouTube views and my ever-stagnant Google+ account “enrich” my experience? These are disparate things used for different tasks, with the exception of web search, which is virtually universal.
You can come up with cases that this could be marginally beneficial. Say, for instance, you’re watching a music video on YouTube, and then switch over to Google Music. The song you just listened to could be at the top of a recommendation list. You could also make the argument that it would be convenient for Safeway to email you a shopping list every week based on your purchases from the past month. Both are creepy as fuck.
You nailed it with marketing though.
(Source: johngruber)