had my revolution for a couple of weeks now and I am very impressed. As well as music, it has a radio, voice recording, photo section, e-book and movie players. transferring music from CDs is simple, and for older formats it's really easy to transfer music from cassettes and vinyl from your hi- fi system, as long as you have the right cables (inexpensive, a few quid, from a proper electrical shop).
this product does much more than ipod, and you will never be lost for entertainment- I'm going to use it mostly for my older format music. memory can be boosted to up to 20g, and the customer support are checking now to see if a 32 SD would work ..
Charges from your pc then you top up by winding. I imagine it's not particularly cool, so not in danger of being stolen!! if you are an outdoors type you'll find this ideal...you'll never run out of battery(on top of everything else it will charge your phone and it also has a torch!)
so far so good...