The Ipod killer is called Nomad Zen adn its pretty darned cool, not empeg mind you but very cool Plus sides are:
Hackable (hopefully!)
1394 OR USB
charges off of USB
Remote with record capability (keep fingers crossed)
Cons (thus Far):
Not clever enough cache
Absolute crap for computer software (BUY Notmad from redchair.com)
Small display/hard to read (in the car!!)