On Tuesday Autodesk is expected to announce the return of AutoCAD to the Mac. The announcement is also expected to deliver an iPhone app.

AutoCAD has been off the Mac platform for over 15 years and the new return could help Apple in sustaining Mac momentum among business and consumer buyers.

Autodesk has estimated that over 10 million users use the AutoCAD design software around the globe and Mac customers have been asking for AutoCAD for many years.

The mobile application version of the design software is called “AutoCAD WS” and is said to allow users to view AutoCAD designs and make minor changes. As a bonus, the app is free!

The Mac OS X version of AutoCAD is expected to be released by the end of October 2010.

[NYTimes]