the only noteworthy new feature on the 605 wifi is that it can play flash videos such as youtube. if you're not into flash videos, then go for the 604 wifi. it's much cheaper now.

for $50 more you can get the 160gb version on sale at amazon http://www.amazon.com/exec/obidos/tg/detail/-/B000S5UY2G

note the reviews citing poor battery, lack of usb port on the unit for re-charging, and buggy OS causing crashes

I have a 604wifi, works great

#1 - the 604 only comes in 30 gigs. The 605 comes in 30, 80 and 160. Get the 605.

the 604 also have a "removable battery" making them 10 times better than the 605

#5 - What are you going to do with the battery after you remove it?

i like this :]

Lol #6..... then you can change the batteries your self instead of sending it in and paying a crap load of money, also good for backups.

Are these good for music and movies during plane travel?

It's $298.46 right now at Amazon.

They are packed full of features, and I'd definitely buy one if the product was executed right.. Unfortunately they ARE very buggy, the wifi isn't great, the battery life sucks, and the sound quality isn't very good.

So @9, not as much as a Cowon A2 or something would be.

great for travel and laying in bed watching youtube at night. Good stuff. Love it! Archos is killing the market!