Does the Starbucks app work with Passbook? It behaves no different than it did prior to Passbook?
Pehaps this will help:
US only right now, I believe, in case you're in another country.
Are you using the Starbuck's app version 2.5.1 revised October 23, 2012?
That version says "you can now add a Starbuck's card to Passbook."
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