Developers attending GDC were polled on what systems they're developing for. GDC is western developers only.
52% of developers working on PC titles
50% of developers working on mobile titles
20% of developers working on PS4 titles
18% of developers working on Xbox One titles
7% of developers working on ports for Vita
4% of developers working on Wii U titles
2% of developers working on 3DS titles
http://www.ign.com/videos/2014/02/23/game-scoop-20-of-devs-working-on-ps4-games







