I don't think it's a causal relationship, more a matter of riding the wave, but you still have to give Obama credit for participating in the open government/transparency movement. I say this as today the AP pointed out some problems in the recovery Act data--in some cases too many jobs were claimed. The White House has immediately fired back. And I'd refer to my rule about learning, it's still a learning curve.
But in the broader context we're developing the expectation, fed by Obama administration actions and the initiatives of many good government types, that government data will be open, accessible, manipulable, and correct. That's a major step forward. If you believe, as I do, the government is a congeries of organizations of people, some of which are efficient and effective and some are not, then having good data available to all will identify which are which. In the long run that's very important--one big step to restoring and maintaining public confidence in government.