One the reviewers confirms he can mount the disk on his linux box.
Yup, that's how I load mine, I don't get the fancy playlist stuff that I guess that I would if I was running it from Windows (don't care), and it has USB 2.0 so it's pretty quick.
Store *any* type of file so it doubles as an external HD.
Relatively small, on the order of an iPod.
About the only bad thing that I say about it that is has a really strange interface. Still learning the darn thing. And that the buttons are a wee bit small for my “Andre the Giant” sized hands.
Very happy with mine