Note: this is a post from one of our readers. I obviously have different views om the topic, but I think it's important to share maruadventurer's views. -- Tony Mobily
1: The Operating system is no longer important. In 2009, people develop for the Web, full stop
There are whole genre of programs that like Photoshop will probably never make it to the web. Practically any program that requires a physical interface will require an OS. CAD/CAM, topology, astrophysics, astronomy, etc. The list is long.