Today only, Musician's Friend has this Peavey AmpKit LiNK Guitar Interface for iPhone, iPod touch, and iPad for $29.99. Add it to your cart and the price drops to $19..99. The device connects any electric guitar, bass, or line level source to an iPhone, most versions of the iPod touch, or iPad for use with musical and recording apps. It can also connect to headphones, powered speakers, and PA systems. Shipping is $3.49.