[QUOTE=Kidani & Me;1041121]Somehow I hadn’t realized they changed the name and one year I remember noticing that the park maps didn’t say MGM anymore.[/QUOTE]
The official change was January 7, 2008.
We were in WDW through Jan 2 and were under the mistaken idea that the name was supposed to change on New Year’s Day.
It took a while for everything to get switched over.