Update: The general Madden NFL 10 demo is slated for "late July," EA has clarified. We're also told that the public Giants vs. Cowboys demo will sport 1 minute quarters, not the previously reported 2 minute quarters, with the company apologizing for the confusion.

Original: Though GameStop yesterday announced that it was offering an "exclusive demo" of Madden NFL 10 as a pre-order incentive, publisher Electronic Arts has informed Shacknews that a downloadable demo will be available to the public as well.

"We will also be issuing a demo via Xbox LIVE and PSN that features the Giants vs. Cowboys with 2 minute quarters," the company told us. "The GameStop demo is exclusive in terms of content. For example, the GameStop exclusive demo features a rematch of Super Bowl XLIII featuring the Steelers vs. Cardinals with 5 minute quarters."

We're checking in to see when the public demo will be released for Xbox 360 and PlayStation 3. The GameStop exclusive demo is expected "by the end of July."

The full version of the football game--in development for PlayStation 2, PlayStation 3, Xbox 360, Wii and PSP--arrives in North American retailers on Friday, August 14.