It seems that the app store is spurring developers of other mobile platforms to make more interesting products and Guitar Suite for Windows Mobile is one example- “The essential application for any guitar player. Panoramic Guitar Suite contains five essential screens: Chords, Scales, Digital Tuner, Tune by Ear, and a Metronome, making it a great and comprehensive aid for guitarists. Practice, reference or teach by accessing Guitar Suite’s library of over 25,000 popular chords. Visual feedback from the extremely accurate Metronome with variable tempo and meter, helps maintain a consistent tempo while practicing.”