Griffin Technology today announced RocketFM, a wireless solution for broadcasting Mac or PC audio applications to any FM radio. RocketFM uses any available FM frequency to transmit music or audio through a home or office stereo system, so applications such as iTunes, GarageBand, video soundtracks and even streaming audio can be conveniently broadcast via FM. RocketFM includes software for Mac and PC and is priced at US$39.99. It is expected to start shipping this quarter and pre-orders are being taken now.