A new study suggests that their large screen sizes and impressive graphics will make tablets a growing force in mobile games. Specifically, Juniper Research predicts total end-user revenue from tablet games will grow to $3.1 billion by 2014, up from $491 million in 2011. In four years, tablets will account for more than one-third of all mobile game revenue. Juniper projects social and casual games will drive the bulk of mobile game downloads overall. And because of the proliferation of smartphones and tablets, game revenue on feature phones will be cut in half by 2016.