Seems to me google search results are the same as ever, they just put a G+ widget on the side and Twitter and Facebook peeps are upset they weren't included so they're calling it "evil".
That's my thought too. This seems like a nice landing page for a profile, but it's trying to do two very different things. It's great for your top items, but the entire timeline history should be a different product.
Lots of people right down their thoughts in a journal, in a text document, on a sheet of paper. Many of those notes/thoughts end up just sitting there. The random thought reminders will hopefully bring those old thoughts back to you and let you act on them or just remind you of something interesting.