Jammy Guitar - Portable steel string digital guitar made to play anywhere
Jamstik Smart Guitars - Portable MIDI guitars for music production & instruction.
MI Guitar - A new type of guitar that you can pick up & play, instantly.
Instinct - Guitar lessons that listen as you play along
Bohemian Guitars - Guitars inspired by South African street musicians
Uberchord Guitar - Get better on your guitar. Fast.