Let the hive mind of Engadget get that for you.
"For a long time I have been searching for a portable device where I can store all of my CDs in MP3 format and stream the songs wirelessly to my HiFi system. The portable device must I've tried FM transmitters, they all suck. I don't want a docking station. Any help? Thanks!" have a display so that I easily can scroll through the playlists (I don't want to use a TV or monitor). I suppose that there must also be a second device that is connected to the HiFi system that would receive the wireless streams from the portable device.
Yeah, it's very slow out of the box, but the kind of person who buys a device like this is knowledgable and opinionated enough to tweak it anyway, no matter how fast it comes out of the box :D
The software itself is so-so at best and not for the faint of heart. There's plenty of odd, proprietary stuff packed in there as it is, and most of it isn't very intuitive.
As for the hardware? I loooove it! Fantastic design, very nice screen, all the ports you could want, GPS... BT and webcam on particular units... I'm quite pleased.
I use mine every day. I'm a journalist, and this is a great way to keep all my appointments, contacts, documents, etc. in one place. I also don't have to sacrifice much in the way of power and usability over my regular laptop. And functions like note taking and reading the paper are a lot more fun then with other devices.
I love my R2H.