In 1969, at the age of 19, I was lucky enough to work with George C. Scott in the definitive portrayal of his career over a period of many months and several countries on the definitive film version of Patton's WWII career.
Original thought is like original sin: both happened before you were born to people you could not have possibly met.
So if we're going to build new applications that require a large time investment, like say movie editing - today that doesn't matter for the enterprise desktop, but eventually it will when we get closer to consumers - you really need to have a cross-platform story.