2. Apple sued Microsoft because they said that Microsoft coppied their GUI ideas from LISA and used them to make Windows, Microsoft ended up winning the lawsuit and the appeals court stated that "almost all the similarities spring either from the license or from basic ideas and their obvious expression... illicit copying could occur only if the works as a whole are virtually identical."
3. The good artist is Gates and he is the great artist.
4. As of August Microsoft has 93.06% of the market share and Mac has 4.87%. Linux comes in at .94% and the next highest is the iPhones OS at .3%. Here's a graph with that data.
