as far as I know had Beos not much software. Why should you install a OS just to move the system windows. The same happened to OS/2. But what do you proof with that? That the chances are better when you have to invest 1000 ¤ for a new system instead of 150 ¤ for a new operating system and use existing hardware? The simpler and cheaper it is to start, the simpler it is to persuade customers.