I've attended both Google I/O and Facebook f8 developer conferences which both were held in San Francisco and were much bigger than Yahoo's Open Hack Days, with more than 1,000 attendees.

When you compare with Yahoo's event that only attracted 300-400 developers, that makes you wonder if the Sunnyvale company is losing touch with developers. Well, according to Yahoo's head of its developer network, Chris Yeh (pictured), the smaller size event was actually done by design. And the fact that it's held at Yahoo's headquarters, favour relationships between re-energized Yahoo's own developers and third party programmers.

"This is our equivalent to the developer conference... For us the way we approach developers is very personal and one on one. This our approach to doing a developer conference. So there are aspects of that, like tracks with various experts talking about different products today but at the same time there's emphasis here on looking with people. So tonight you'll see many of our Yahoo programmers working with third party programmers to make sure they can build their hacks tonight. I think it's more of our style", explains Chris Yeh.

Check our video interview with Chris Yeh after the jump.