The RC-S360/SH product, manufactured by Sony, embed a NXP's PN53x-derivated chip; it have a quite good antenna but not a full support in libnfc.

Unlike NXP does, Sony does not have released the User manual of internal chip.

Pictures made by squeeks from the libnfc's forum.

Official website : http://www.sony.net/

Product page: http://www.sony.net/Products/felica/business/products/RC-S360.html