Sony has reportedly shipped 10.5 million units of its Move peripheral worldwide. Sony developer support engineer Gabe Ahn said that this number represents units shipped to retailers rather than sold, and includes sales of both Move and Navigation Controllers.
Ahn believes the Move’s attach rate is at one for every six PS3 consoles. However, 62 million PS3 consoles had been sold as of December 31 2011, which would mean that around 10 million sales of the Move controller would have had to have occurred, meaning Ahn’s math is likely off.
Source: IGN
