PS4 @ 4.2 Million as of Dec 28th - Software @ 9.7 Million - 90% Increase in PS Plus Subs

[colafitte]

4'2 million sold until December 28 2013...
6'5 million sold until February 28 2014 with Japan launch??
10 million sold until E3 2014???
20 million sold until end 2014??????

Seems more likely than ever that PS4 will sell more than 15 million only in 2014, maybe 20 million?!??!?!?