Here is a fun accessory for your iPhone, iPod, or MP3 player, a speaker shaped like a guitar amp, the Mini Marshall Amplifier. The Mini Marshall Amplifier stands 5 inches tall and can pump out a ...

IK Multimedia's $40 AmpliTube iRig and Griffin Technology's $30 GuitarConnect Cable let you connect your guitar to your iPod touch, iPhone, or iPad. James Galbraith tries them out to see how well ...