Microsoft, a company that has acquired many companies is demanding from Samsung due to the fact that they shall include Windows OS 7 onto a device. The $15 rate might drop to $10 for their relation.
Another reason that Microsoft is demanding that $15 is because it may reduce sales and that it also may cause the manufacturers to turn to Windows OS 7. Samsung has previously sold 19 million smartphones during April-June period of which most of the devices are Android. The Galaxy S ll makes up 3 million of those 19 million sold.