Hi guys, Just now saw a video of a guitar that tunes by itself. Its a product launched by Tronical. Video: http://www.sonicstate.com/mirror/asx/wnamm06_tronical_powertune.asx Description: http://www.tronical.com/info01.html My personal opinion about this is not worthy. unless and untill you want to spend some extra money to save your tuning time. but something new going on in tuning tech.