With respect to mobile gaming, 2014 might be described as a year in which the rich got richer: perennial Top Grossing stalwarts King and Supercell both released new titles that have consistently ranked amongst the top 20 revenue generators on the App Store, while Machine Zone, Big Fish, and GungHo managed to retain their Top 20 statures with games that were released in either 2012 or 2013.

In fact, the share of Top 20 grossing ranks (iPhone / US) captured by just 4 developers increased from just over one third to nearly one half from December 1st, 2013 to December 1st, 2014.

It's only fair to share...