For anyone who's interested in this sort of thing, information about the gift with purchase pins being given out for January - June 2006 has been released with little signs in the park.
Here's a picture of the sign, and here's a close-up of the map/pins.
Here's the text on the sign:
GIFT WITH PURCHASE SUNDAY
Gift with Purchase Sunday will begin on January 8, 2006 and then the first Sunday of each month through June, 2006.
Receive a gift with purchase pin for every $20 incremental purchase (before taxes, after discount) on pins and/or pin accessories.
Gift with Purchase pins will be available at participating pin purchasing locations throughout the Resort, while supplies last.
Gift with Purchase pins will include:
Space Mountain Mickey
Soarin' Over California Daisy
California Screamin' Chip and Dale
Matterhorn Bobsleds Goofy
Splash Mountain Brer Rabbit
Twilight Zone Tower of Terror Stitch
Gift with Purchase pins to be determined by Disney. The pins listed above are in no particular release order. Gift with Purchase maps will be available on the first Sunday in January. Maps and pins available while supplies last. Separate theme park admission required. Subject to restrictions and change without notice.