Brian ”BT” Transeau has announced a new iPhone app to promote his new album The Rose of Jericho. Created for the trance DJ by developer Sonik Architects, Sonifi lets fans remix his songs and videos, adding beats and sounds, while shaking their iPhone for a so-called “stutter edit”.We’re also very impressed by the way it uses the new iPhone 3.0 software to provide a Bluetooth two-person mode, where one of you controls beats and bass, while the other handles melody and harmony. Soon, other artists will be included via downloadable packs.We said in last week’s Music Ally Report that iPhone 3.0 has huge potential for music apps. Well, here’s the first proof, although the latest update of Tap Tap Revenge is also hinting at great things ahead. Want a go on BT’s app? Click here to open its App Store page.