Thanks for the numerous tips, everybody!
It looks like there won't be any United States Grand Prix (USGP) next year, at least not at Indy. According to all of the reports we've read, the 2008 Formula One schedule won't have a slot for a United States Grand Prix at the Indianapolis Motor Speedway. After eight years of races at the Speedway, the FIA and Tony George apparently couldn't reach an agreement for future GPs at Indy. It seems F1 boss Bernie Ecclestone made some less-than-flattering comments about the event following the June race this year, and July 12 was the deadline IMS had set for a decision on future races. The two parties had been on a one-year extension of the prior contract, but it looks like there will be no extension this time around. There is still some remote hope that an agreement could come in the future, but even if Indy fails to secure a new race, Vegas and New York have been mentioned as possible future USGP locations. No info on those developments has surfaced yet.