Triple Squid Software has recently updated the beta they provide for the Mac OSX version of their NURBS modeler Moment Of Inspiration. Moment Of Inspiration is designed to be a NURBS modeler for artists and designers who may be frustrated with the complexity of existing CAD tools, providing Pen Tablet support and a simple user interface to make the modeling process simple. Check out the Moment of Inspiration MOI Mac OSX beta which can be downloaded here.