From video description:
Gerhard de Clercq and Pieter Sholtz, two South African teens, talk about their innovation that allows 3D printing directly from their phone and their mission to make 3D printing more accessible in Africa through mobile.
http://www.youtube.com/user/mLabSAStudio?feature=watch
Update (15.1.2014):
They have released it into Windows phone store:
http://diy3dprinting.blogspot.com/2014/01/reprap-phone-host-3d-printing-app-is.html