Looks interesting,surprised this hadn't been thought of earlier!

Looks interesting,surprised this hadn't been thought of earlier!
Seems like a cheaper system for implementation than NFC, but is very complicated. NFC seems like it'll do better, especially as Google Wallet becomes more popular.
I actually had an old member of my school come in to talk today and apparently his company is working on a mobile payments system like this.
Chippiewill.
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