After selling more than 30 million Galaxy S III handsets in just 150 days, the numbers were bound to add up fast. Samsung (005930) on Monday confirmed that cumulative Galaxy S smartphone sales have now topped 100 million units. Interestingly, the news was first published in a note on Samsung’s official Flickr page. Sales of Samsung’s latest flagship phone, the Galaxy S III have now reached the 40 million-mark according to the vendor, having taken just seven months to get there. Samsung says Galaxy S II sales hit 40 million units as well, but it took 20 months for the firm’s previous-generation flagship model to reach the milestone. The Galaxy S line is clearly Samsung’s most successful smartphones series, but its Note lineup has also been well-received; Samsung previously confirmed that sales of its Galaxy Note handset topped 10 million units and Galaxy Note II sales surpassed 5 million units.