One has to select "Points and Fixed Miles" or "Points and Variable Miles" as his or her earning option, and the carrier for miles must be Aeromexico,American Airlines,AviancaTACA, Multiplus or United. Requires registration, and applies to stays completed by Dec. 31, 2012. The e-mail emphasizes that the airlines involved serve the Latin-American and Caribbean regions, but the hotel stays don't need to be there to qualify, at least as I read it. So I guess this is the fourth-quarter promotion. There are in fact participating hotels from many regions and areas. Not to poke fun at one of Hilton's favorite adjectives, however, at first glance the list of participating hotels is considerably less than "Grand." Better than a poke in the eye with a sharp stick, I guess. Just signed up. I imagine I will be able to contain my excitement and sleep okay tonight.