Liking a lot of the development ideas on this one so far. Hoping that it turns out well so that I can start using it

A thought for the heart container... Umm... 1) a little fruity IMHO, but 2) More importantly is the fact that everyone is very familiar with the star rating system... Not that a heart wont work... But how are you going to fill/unfill that heart on a 7" touchscreen monitor with your finger? Maybe its just because I'm not sure how your going to make it function, but attempting to fill a heart on a touchscreen will be a challenge, at least I would think so.
I do like the idea of rating songs, having an active playlist, most played, etc... Thats brilliant for sure... Just might wanna look at the difficulty of using the touchscreen with fat fingers an such
Also the top with the song title spot, that looks beautiful

Having that there all the time is nice. Also with the "Home/House" button that hides the bottom bar, how much processing power/graphical power does that take? Just adding it up, you've got your music playing, you've got a GPS program (iGuidance for many people), you may have your mobile phone app running to answer phone calls, and now your adding a beautiful sliding transparent bar, and most people are using onboard graphics with ~1-1.5ghz processors. Thats just a thought though... I may be way out in left field on that, but beautiful interfaces come at a price normally.
Dont get me wrong, I do like the idea of the home button there and having access to some other functions, maybe shortcuts (or even user defined shortcuts according to what they want) and the like... But as I was thinking about that I caught myself thinking about how my M10000 might not handle it. But again, I may be wrong, it might handle it all just fine, but something to think about or throw out there for thought.
Really looking forward to testing this and seeing how it all works out