Android NFC (Card Emulation Mode)

Need an android application for Samsung Galaxy Nexus S (NFC enabled handset) to make peer to peer communication between POS over NFC Channed, our application should create a dummy applet in the NFC secure element and corresponding APDU commands/responsed such that when we tap our handset to the POS the POS will select a particular applet by sending a APDU command to our handset and corresponding APDU commands for further responses.