by iPod Nano. Nano first 1, 2, 4 GB USB (FireWire for charging only) 7 September 2005 Mac:  10.3 Win:  2000 audio : 14 slideshow : 4 Replaced Mini . Available in black or white and used flash memory. Color screen for picture viewing. 1 GB version released later. second 2, 4, 8 GB USB (FireWire