Project Butterfly is an Autodesk Technology Preview that enables AutoCAD® users to edit and collaborate on AutoCAD drawings through a Web browser. With Project Butterfly, AutoCAD users can share and work on DWGTM files with colleagues and clients from any computer with an Internet connection.

Also the file can be downloaded via the browser to AutoCAD 2004, 07 & 10 versions. It may be the next generation of CAD platform, as the grid computing and virtualization technology grows rapidly.