An interesting open source NFC project is seeking for funding on kickstarter: you still have few days to contribute and help them reach the target!
MicroNFCBoard is an integrated development platform that makes it easy to use Near Field Communication or NFC (What is NFC? see below for more info). It contains a NFC transceiver, a microcontroller and all the software you need to use NFC.
It can be used with an Arduino, Raspberry Pi, mbed or PC/Mac. There is also a powerful ARM Cortex-M0 microcontroller onboard so it can work on its own and you can connect a bunch of things to the board using its various peripherals.
via MicroNFCBoard – Easy NFC for the Internet of Things by Donatien Garnier — Kickstarter.