Coding Passbook: Lessons Learned

I'm seeing diagnostic techniques in there that I did not find in the Apple supplied literature. You will probably want this when you decide to make a Passbook pass.

What does the bar code do anyways when using Bill Guard on passbook?

currently it's a refer link that gives you an extra card for free if your invite a friend

Excellent guideline, love what you guys are doing at BillGuard.

What is Passbook?

Passbook is intended to collect "the stuff in your pocket", e.g. Payment cards, rewards cards, coupons, tickets, boarding passes, in a handy app that helpfully shows you the right one at the right time.

Once someone has your pass in their passbook you can send updates, such as special deals.

This Quora post covers it nicely: http://www.quora.com/Passbook-iOS-app/How-will-Apples-new-mo...

BillGuard now lets you add your credit cards to Passbook and monitor balances and recent transactions. It also notifies you to any suspicious charges made using your card.

[Disclaimer: I work at BillGuard]