Much of the growth is thanks to smartphones, where most mobile gaming takes place. eMarketer estimates 103.6 million smartphone users will play games at least monthly this year, up 23.7% over 2012. While that’s a sharp decrease in growth, double-digit increases are expected to continue through 2016, when more than eight in 10 smartphone users will play mobile games. That will represent nearly half the total population of the US. Read the rest at eMarketer.