Not sure if this got noticed but at the end of my statement I had the following note:

Important Messages:

In honor of our 15-year card partnership, U.S. Bank and Northwest Airlines are pleased to inform you that your credit
card acct. will earn WorldPerks miles AND FlexPoints through 6/16/09, regardless of whether you use your WorldPerks
Visa or activated FlexPerks Visa card. After 6/17/09, your WorldPerks Visa card will no longer allow charges and your
FlexPerks card will continue to earn FlexPoints. For details, please visit flexperks.com.
As a courtesy reminder, this is your last account statement as a WorldPerks Visa cardmember. Your next account
statement will reflect your FlexPerks Visa purchases and FlexPoints balance.

17th of the month is my usual closing date so if your closing date is different this maybe different for you. I doubt this is targeted.