(From left to right: Autodesk 3ds Max, Softimage, Autodesk Maya)
So do you still remember these names?
1) WordStar (word processor application)
2) Lotus 1-2-3 (spreadsheet program)
3) Borland & Watcom C Compiler (C compiler)
4) OpenGL (3D graphics API)
These are the software products that once lead in its own fields, and now Microsoft had beat them with its own products, with Microsoft Word, Microsoft Excel, Visual C++ & Direct 3D, respectively.
After defeating several software giants, MS is targeting Adobe, with its SilverLight & Expression Studio. How long will Adobe (and Flash) last? Will Microsoft targets Autodesk next, especially MS has bought Carigari, the creator of trueSpace? Let's wait and see.
p/s: Dear developers, you might interest to see how .NET can be used in Autodesk product as well, at here: Developing for AutoCAD® Using F#
Gentle reminder, you might need to prepare yourself for it sooner or later :)