Samsung today said it has sold 50 million full touchscreen phones since putting them on sale in 2008. The symbolic milestone comes as sales have grown from 10 million last year to 40 million this year. Of the collection, a full 10 million are the entry-level Star (S5230), while the Samsung F480 (also known as the Behold or Tocco) represents 9 million. The Corby has already passed the 3 million mark despite just launching in September.