Yes i want linux, windows, and mac support. I think you are good for a few years though :). Getting something up and working is the easy part. Adding all the features that are required to compete with something the likes of SolidWorks or ACAD takes time.
One way or another i am going to build this, whether or not it takes off and gets to a professional level -- only time will tell. I know one thing for sure the need is there, the product is not. -- http://mail.python.org/mailman/listinfo/python-list