For our followers in the U.S. there are two offers floating around for using your MileagePlus Credit Card. It appears from can be read on Milepoint, that spending prior to you registering will count as long as you were an existing cardholder as of August 1. These offers run until October 31 and of course the first offer that requires $1,000 in spending is better but just in case you don’t qualify for that one during the registration process you can always try the $3,000 version
Spend $1,000 get 5,000 miles
Earn up to 5,000 bonus award miles when you register and spend at least
$1,000 USD or equivalent in local currency on your MileagePlus® Credit
Card between August 1 and October 31, 2012.
http://www.united.com//web/en-US/apps/mileageplus/promotions/registrationDetails.aspx?promoCode=TB4M52
Spend $3,000 get 5,000 miles
Earn up to 5,000 bonus award miles when you register and spend at least
$3,000 USD or equivalent in local currency on your MileagePlus® Credit
Card between August 1 and October 31, 2012.
http://www.united.com//web/en-US/apps/mileageplus/promotions/registrationDetails.aspx?promoCode=TB4M46
