Pro 2010's networking and IDL was a big step for me,  but I'll vote for the one which will let me do motion capture in Poser - animation is about get a lot easier.  :biggrin:

http://poser.smithmicro.com/gamedev.html

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5