I. Most only come in two colors, black, and white, except the Ipod nano, which comes in many different colors.
II. You can only import certain audio formats to them (mp3, wav, aac, wma, mp4)
III. Have a tendency to freeze or crash
V. Completely over expensive
VI. the headphones break easy
VII. Itunes can sometimes become complicated and fiddily
VIII. The setup is crap!!!!
VIIII (dunno roman numerals). they are really cold in the morning so annoying to use with your fingers
VIIIII. corners are sharp
VIIIIII. if you have them in you back pocket and sit down they snap in seconds
VIIIIIII. you can only get it fixed by a specialist Ipod dealers instead of an MP3 dealers
want anymore I got a huge list