Don't know who my son got the annoucement from, but I do know he received it after 12/25.
From the "already own a Sportster" page.
http://www.harley-davidson.com/wcm/Content/Pages/2008_Campaigns/ride_free/rideFreeCurrent.jsp?locale=en_US&#terms*TERMS AND CONDITIONS
Current owners of MY07, 08, and 09 Sportsters 883 or 1200:
This offer applies to the current titled owner ("owner") of a MY 2007, 2008 or 2009 Sportster 883 or 1200 ("qualifying existing motorcycle") as of December 25, 2008.The owner of a qualifying existing motorcycle has the option to trade in the qualifying motorcycle from December 26, 2008 through March 31, 2009, value towards the purchase of a Harley Big Twin.
The MSRP value used for trade-in will be the original factory-delivered MSRP (including factory installed options) of the qualifying new motorcycle excluding parts and accessories, taxes, freight, titles, licenses, set-up/prep charges, Extended Service Plan, GAP coverage and any dealer add-ons, and regardless of the amount actually paid.
The owner must have valid title of the qualifying existing motorcycle to qualify for this offer and must be the current owner of the vehicle as of December 25, 2008.The trade-in can only be used for Harley Big Twin motorcycles, which includes all Touring, Softail, Dyna, VRSC models. Excludes XR1200 & Police Models. Only one claim per VIN is eligible.
The owner is responsible for the difference between the trade-in value of the qualifying existing motorcycle and the purchase price of the Harley-Davidson Big Twin.
Trade-in must be a stock vehicle in good condition and good working order. Tires, suspension, engine, and transmission must all be within factory specifications and are subject to inspection by the participating H-D dealer. Vehicle exterior cannot reflect neglect or abuse. The participating H-D dealer will make the sole determination regarding whether the trade-in is in good working condition and good working order.
The owner is responsible for all costs of operating and maintaining the qualifying existing motorcycle prior to trade-in.
This offer may not be combined with any other promotions, offers or discounts.
This offer is not transferable and is not redeemable in cash.