Till now Nexus S is the only device offered with in-built NFC chip which helps to make NFC payments. iPhone declared that they are going to enable this feature in their feature devices (iPhone 5 / 4s), but now there is no need to wait till Apple launch this feature in its upcoming devices. There is an easy hack which lets any one to enable NFC payment from their iPhone4. Buy tapping your smartphone over the fancy credit card terminals and get this job done. All you have to do is look for a bank that provides small credit card with NFC chips and that could be added to your iPhone4.
Android users who are using NFC features have the chance to make credit card transitions simply by tapping their smartphone on a credit card terminal. This mode of payment is mostly used to make small purchases up to $20. By using NFC payment there is no need of pin or signature which tends to making fast and convenient payment. This feature comes by default in all the latest Nexus S devices you can make your payment by just swapping your device.
So the same transition can be done my iPhone user by simply adding a signal credit card. And can use the NFC payment method. Search for a bank which provides smaller NFC type credit cards which you can easily add to your iPhone 4 with out changing any appearances.
As currently iPhone doesn’t offer this NFC feature in it devices, you can integrate this to ypur iPhone by just removing the glass at the back of the iPhone 4. Once the cover is off, place the credit card behind the battery and VOILA that’s it you are done with integrating your iPhone 4 with latest NFC feature.