Apple isn't the only company touting strong smartphone sales today.

Samsung announced this morning that it has sold 30 million Galaxy S and Galaxy S II smartphones worldwide since the line's launch in 2010. According to the company, it has sold nearly 20 million Galaxy S units, making that handset the fastest-selling smartphone it has ever launched. Sales of the Galaxy S II have reached more than 10 million since its launch earlier this year, the company said.