Samsung's sales goals for the Galaxy S III are already ahead of schedule. Samsung expected to sell 30 Million units of the SGS3 before the end of the year, but their newest report said they already blew past that goal. Within just 150 days, Samsung shipped more than 30 Million Samsung devices. This is three times the number of Samsung Galaxy S II devices sold during the same period previously. Here's a quote from JK Shin, Samsung's Mobile Head:

It will be interesting to see how much more they sell before the end of the year, especially since the price keeps dropping and we keep seeing sales on the device (not to mention the fact that many versions of the phone now have Jelly Bean). Nice job Sammy!

Source: S3Forums via Samsung