Anyone tried ElecFreaks NFC Bridge?

I recently bought http://www.elecfreaks.com/store/nfc-bridge-p-689.html Arduino+NFC thing.

Looks awesome, its a leonardo + PN532 NFc shield all together. Heres the wiki http://www.elecfreaks.com/wiki/index.php?title=NFC_Bridge

Has anyone tried it? Are the digital inputs used by the Xbee interface? Can I reuse the analogs to digital like in other Arduino?

Thanks