barking_at_airplanes writes "Some called him crazy a few years ago when he joined Microsoft to run the Open Source Software Lab, but Sam Ramji endured and made real differences to how Microsoft treats open source and how open source people view Microsoft. Ramji is now heading back to Silicon Valley to join a cloud computing startup. Sam comments in his announcement: '46 months later, I am amazed at the changes that have occurred for the company, for the team I belonged to, and the sentiments of the industry.' It's a statement which, 46 months ago, few Slashdotters would have thought could come true! With Sam leaving, can Microsoft's positive momentum into open source continue successfully? Bill Hilf says they're 'actively seeking someone to fill Sam's shoes.'"