Turkey has often taken the lead in the deployment of advanced mobile banking applications. The deployment of digital signatures (and the application in banking) is by far more advanced than anything in the rest of the world. Garanti Bank recently announced (in conjunction with Avea (a new Turkish mobile operator)) that they have launched a NFC-enabled SIM. (Read here) This is in my view, one of the most important announcements in the mobile banking industry this year. The possibilities created by this advance is huge and should be evaluated further.
The biggest challenge faced in rolling out mobile enabled NFC (waving the phone in front of a reader) solutions is that very few phones actually ship with a proximity radio. This is an essential part of the NFC eco-system. Without this little piece of hardware, it is impossible to develop NFC solutions. (No advances in software can compensate for the lack of this piece of hardware). Placing the proximity radio on the SIM card has been considered as a possibility many times, but was always discarded because of one big challenge: the radio's antennae. The SIM card is too small to also carry a big enough antennae and furthermore, the SIM card is often hidden inside the phone, sometimes behind the battery. Even if the antennae were to reside on the SIM, it would be very ineffective and different from one phone to another.
It is not clear how this problem has been solved, but it seems to have been solved. This innovation (if replicable on other networks), would allow any phone to be NFC ready by just swapping the SIM card. Other pilots have utilised the memory slots available in phones and have used proximity radios installed on microSD cards. I am of the opinion that these pilots are now doomed as it is a much more plausible solution to place the radio on a SIM card.