Hilton Honors 3rd Quarter Promotion 2010: Double Your Honors
HHonors members will be allowed to chose between double points or double miles (all partner airlines will be participating).
From July 7 to September 30, 2010.
Members who select double miles must have their earning preference set to points & miles.
Keep in mind folks this is more than a month away. Exact details are subject to change and I don't have any more info to provide.