John Doerr took the stage today at Apple’s announcement of its iPhone software developer kit and announced a $100 million fund to invest in startups that create apps for the iPhone. “”I can’t wait to see the great new companies that we build together,” he says. The fund will be led by Matt Murphy at Kleiner and will be called the iFund.

This is in line with similar, if smaller, funds announced to invest in Facebook apps, the $10 million fbFund and a Facebook-only fund from Bay Partners.

Steve Jobs truly wants to turn the iPhone into an industry, and he got Kleiner to jump start it with $100 million. That should get tehball rolling on iPhone-only startups.

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