Sekai Project tweeted that an English version of MikuMikuDance has been Greenlit on Steam. MikuMikuDance is an animation freeware that allows users to get Miku to dance or be used to upload and animate 3D models.
Here are some examples of users using the MikuMikuDance software for other purposes:
//www.youtube.com/embed/ktFttUNT0v0
//www.youtube.com/embed/QSbcd_6AQmM