Well, at least for the main area of the site, the newest songs are inaccessible to a mobile user, as well as most previous songs (except for the songs that were just knocked off the front few, as well as those that appear in the Russian ReMix roulette). In addition, if one was able to reach a ReMix page of his/her choosing, it is impossible to actually be able to download a song.
Right now, this is out of curiosity since I have other means to get the music I want onto my Palm, although I think in the future (maybe next 10 years or however long it may take for mobile devices to gain popularity and usability?) sometime it may be nice to implement a mobile web surfer friendly page.