Barney Hamlin has caught one of the three TAL (Trans Atlantic Landing) INMARSAT frequencies this morning. This NASA comm was heard on the INMARSAT AOR-E bird on 1539.875 MHz.
NASA recently posted more about this TAL capability and you can find out more about this at http://www-pao.ksc.nasa.gov/kscpao/nasafact/pdf/TALsites-06.pdf