Xirus - Augmented CAD in Rhino

Mirrakoi recently announced (at the Rhino User Meeting Berlin) the future release of Xirus, a brand-new geometric modeling kernel which provides augmented CAD: a powerful modeling technology that combines the best of the worlds of NURBS, subdivision, and polygon meshes and adds augmented access to the 3D digital object. Xirus provides decoupled control of tangents, curvature, mixed- and higher order derivatives and enables direct smoothness control in 3D modeling. 

The WIP will be released on November 20th. In the meantime, check out the tutorial videos...