With all the buzz that the Galaxy S 4 isn’t selling so well, news comes out of Korea that Samsung has shipped 20 million units. How does this compare to the Galaxy S III? It took 100 days for the Galaxy S III to hit the same milestone. The Galaxy S 4 achieved this same goal in 68 days. This is pretty darn good, but unfortunately investors still might think this improvement is not enough. Time will tell, but one thing you can’t argue is the fact that the Galaxy S 4 is the fastest selling Android phone ever.