I didn't expect to care about this but I am totally getting one! I don't have a flash drive so this will make it easier to transfer files from work when I need to since emailing is a pain, as is burning a CD. I have a 30GB 3G, but this I can take to the beach, leave in my car (my Element has a line in port) and think of it as a 10 CD changer, or take to the beach where I would be scared to take my iPod for fear of getting sand in it or having it stolen when I'm in the water.
I'm torn between the two models. Without a display, 240 songs will be annoying to navigate through when I don't want to shuffle, but more space is good for using as a flash drive. The SF store was out of them today and didn't know when they'd get more. Bummer. It's also bigger than I thought, almost too big. I have a $10 retail store coupon for any $100 purchase which the 512 model doesn't quite cost. So that' pushing me towards the 1GB. But I'd be really upset if I broke or lost or had stolen a $150 device, and not anywhere near as much with a $100 device.
Couple questions I haven't seen answered. Does it work with USB 2 PCI cards? Can it work on BOTH a PC & a Mac at the same time like a flash drive does? For example, can I load up songs on my mac at home, then plug it in at work to transfer files from my work PC and charge it up at work? Or will it need a reformat each time? The other advantage I see to it is that I often get CDs delivered to work, but I can't normally put them on my mac formatted iPod until I get home. But with this, even if I need to reformat, I could import the CD at work and enjoy my new music on the train ride home!
It will be very interesting to see where they take this product in the next year or two with flash memory only getting cheaper. I think a screen may become necessary eventually.
Another question. Anyone know if it can autofill by genre? that would be awesome to have it randomly choose my Dance songs for the gym.