We've spoken to some of the developers whose games were revealed, and they are not very happy with the leaks. A few other details are showing up, presumably from App Store descriptions linked off of this top revenue list, but we've confirmed with at least one developer above that all of those details are still pending and not yet confirmed. It's no surprise that Apple wanted to be on top of getting apps out on the iPad store before the device's launch, but they've inadvertently revealed some of their developers' hands prematurely.
Update: 9 to 5 Mac has a full list of the App Store chart. It's not yet clear where all of these shots are coming from, but it seems like they're being taken in the dev kit's iPad simulator, which is supposedly still under developer NDA.