Currently on display at the Smithsonian's Udvar Hazy Center of the National Air and Space Museum. The museum is located outside of Washington DC at Dulles Airport.
Display includes Jetfire prototypes, Starscream design plans, Wheelie's vehicle mode, and Sector 7 memorabilia.
http://www.flickr.com/photos/curlrup
Apparently it has been on display since at least May.