StarWars.com reported the following a couple of days ago:
After being detained in a series of Imperial entanglements and chased by smugglers across the Outer Rim, the Official Star Wars Fan Club membership kits have finally materialized on this side of our own galaxy. Next month, the first batch of kits is scheduled to be mailed out from our Southern California fulfillment house to all fans whose memberships or renewals run through December 31, 2007.
The Star Wars Fan Club apologizes for the delay in sending the kits, but hopes you’ll be pleased with the contents, which include the triumphant return of the Fan Club patch! Some of the items from the kit are shown below.
Since there is The Official UK Star Wars Fan Club, it’s unclear whether or not you can join both.