I've found some useful apps for my iPod touch, as they relate to us bass players. Here they are: Metronome (http://www.onemoremuse.com) A lot of good features and accurate. Amazing Slow Downer (http://www.ronimusic.com) This is for when I don't want to drag my computer into the music room to fire up Transcribe. iReal Book (http://irealbook.net) Lots of songs in a pinch; change keys; add your own songs. iStroboSoft (http://www.petersontuners.com) At $10.00, it's a steal. I just got it, but I don't yet have the phone-plug-to-iPod adapter to be able to tune my bass. Peterson has 'em. EDIT: I got one of those thumb-tack mics and held my tuning fork against it to calibrate the tuner. Pretty slick. I then found some A440 reference tones on the Interweb, and they're not all A440. The computer's sound card may not be properly calibrated to generate the exact frequency. Have you found anything of value (for iPhone/iPod) that we'd be interested in? Let's hear it.