The Roth Music Cocoon MC4 is a 2x13W tube amplifier with an iPod dock that looks killer and has great sound. In addition to the universal iPod dock, the Cocoon MC4 has a 3.5mm mini input, component auxiliary input, and an S-Video output.
The dock on top of the unit displays an iPod or iPhone while playing music and charging the batteries. The sound output, when paired with a nice set of speakers, has the classic tube warmth and dimension that only tube amplifiers can manage. If you are looking for a compact tube amp for your iPod or iPhone (or anything with a 3.5mm jack) I recommend the Roth Music Cocoon MC4 tube amp, simple design and great sound.