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I don't see how a debit card makes them creepy. In fact, it's really a natural progression for Google Wallet to have meatspace access.

Also, this product will be killed in two years.

Notice the part where they said that they want to use all this information to target consumers.

Visa / MasterCard / other cards keep track of your purchases but they don't exactly customize your experience based off of that.

Yep. Basically you're telling an advertising company about everything you purchase.