Look who's joined Twitter: Google's head of search products, Marissa Mayer. Apparently she finally got around to listening to her ex-boyfriend.

Larry Page has complained that his search team "laughed at me" when the Google co-founder originally suggested Google needed to index content as quickly as Twitter; the chuckling of Page's ex Mayer would have been particularly unbearable, as the search VP is known for her incessant cackle.

But Page should be the one laughing now. Not only has Mayer come around to his point of view — "real time search is incredibly important," she told the Guardian this month — she's just signed up for the microblogging service he has championed:

"One hand in the future and one hand in the present" is a decent motto for a Google executive. Though it must sting to find the future on another company's website.