In the Fall of last year (2011), Walgreens did a test market in a few select cities of a Loyalty Card. The Loyalty Card was tied tied to a points system and limited Register Rewards that a customer could earn.
Well, it looks like Walgreens will be rolling out their Loyalty Card in September of this year.
Walgreens is in the process of having the cards made and working out the details is the new program.
Source: I Heart Wags