Quote from: pm7 on November 22, 2014, 05:43:03 PM

Quote from: Rassah on November 20, 2014, 01:27:56 AM

Quote

3. NFC Pay tapping - 1 Tap = 1 Pay

Not possible. At least not with one tap. You need 1 tap to request the address and amount to send to, then the wallet signs, and then one more tap to send the signed transaction. The reason 1 Tap = 1 Pay works with credit cards is because it's the equivalent of tapping to give the merchant your private key, and then having them only pull out what they need.

Why to send signed transaction by NFC instead releasing it directly to Bitcoin network by smartphone's Internet connection?

You are right. You can do 1 device-to-device tap to pay as long as the Sender is broadcasting out the message directly to the network using their internet connection. Another way is to use both NFC and bluetooth (BLE) and tap to get URI and BLE communications key via NFC, then use BLE to talk to device and send Tx after.

Airbitz actually has the one tap method functional in our next release which should be out this week. Here's a video of it working

http://youtu.be/kmksAu_ytMg?list=UUJaTFo0_z9lEG_v7L_LT2pw