American Airlines has reduced the number of AAdvantage miles necessary for free round trip tickets to a couple of destinations:
For flights to Hawaii between September 7th and November 18th, you only need to use 30,000 miles instead of the normal 35,000. Nice.
AA also has reduced the number of miles necessary for short-haul domestic (750 miles or fewer) flights to 15,000. You can also get a business class ticket for 30,000.