The first time I was really impressed by Microsoft was back in the 1980s. I was being given a private demonstration of a hot new program for the Macintosh. I was struck not just by the beta's cool new graphical interface - a clear advance on existing DOS programs like 1-2-3 - but also by the infectious enthusiasm of the Microsoftie showing me around the beta. The program, as you've probably guessed, was Excel; the person doing the demo was Bill Gates.
On Open Enterprise blog.