Not a whole lot of details yet, but:
Two Models: One, for $599, has a 1.5-GHz Intel Core solo processor with a 60GB hard drive, combo drive that plays DVDs and burns CDs and 512MB of memory. The other, which goes for $799, has a 1.67-GHz Core Duo processor, an 80GB hard drive, 512MB of memory and a SuperDrive that burns CDs and DVDs. Both will be available starting today.
Front Row including streaming music and Remote
exact same case
integrated Intel GMA950 graphics processor with 64MB of shared DDR2 SDRAM
Digital Optical I/O
two RAM slots
iPod Hi-Fi (Boombox): integrated power supply. six d-size batteries. 2 80mm wide-range drivers. in sealed acoustic suspension. bass system: 130mm dual voice coil woofer. ported bass reflex design. "and it doesn't distort when you crank it up". universal dock connector. integrated handles
Apple has updated the iPod's software to accommodate the new speaker system -- a new software update will add a "Speaker" menu to the iPod's interface, allowing users to adjust tone control, control the backlight and turn on large album art.
What's more, the iPod Hi-Fi can be controlled with the Apple Remote. It can also accept input through an auxiliary jack and SPDIF optical audio input.
Leather iPod cases: $99
iTunes Music Store: 1 Billion Songs Sold