Gamestop has a page up for Football 2K8:
LINK. Weird thing is that it's showing for $60 on both platforms. I guess I just sort of assumed that since they went low price for their last version on the Xbox and since they didn't have to pay big, big $'s for the NFL license, they would be able to release this at a lower price point than Madden. We're still a good deal away from August, so maybe as we get closer, they'll announce a lower price point (I think they announced the lower price point for 2K5 in May).