Forget the extremely overpriced Ipods... these little things are way smaller..
I mainly use mine for music and radio... but it also supports video and pictures (not really great on the small screen but the screen is great quality).
Im gonna cut to the chase and pass all the talk about how great the thing is (because it is exactly what you expect)..
The only thing i have to say is to ignore the so-called (scratch-resistant screen). Although i like to keep my things in near-mint condition, i have to say my Zen has got a scratch mark on mine and it hasnt really been near anything thats going to cause that. Therefore, make sure you get a good cover for it (which can be hard to find).
A great little gem of a device :D