Things have been on a roll lately for Passbook-supported apps outside of North America. First it was easyJet, then British Airways and then iTunes Festival London. Now the Subway UK app has finally gained Passbook support.
The new Subway UK app, Subcard, lets customers scan their iPhones at checkout to earn points towards free sandwiches. Additionally, users can browse their Subcard ID number and the total of number of points they've earned right in Passbook.
Currently Subway does not offer Passbook support in the US, nor does it have a countrywide Subway app.
Subcard is a free download from the UK App Store.