Trying to postcount++ there, huh santosh?
Anyway, I had an idea for a similar project involving PS/2. Basically, I'm trying to create a type of "Y" connector for a keyboard port so that two keyboards may be connected to the same DIN input at once. The Chapweske seems to suggest this is possible because of the open-collector interface, but I'm also concerned about the data collisions. Are there any existing projects that have sucessfully used this approach? Is there any way around the collision problem?