It would be really cool if there was a "MP3 Player" that was made by S76, but supports FLAC and OGG Vorbis files also. I have an MP3 player made by SanDisk that supports an enormous amount of files and is also expandable via Micro Secure Digital. Maybe some coders can make an Open source mp3 player O/S.
And for the phones: You guys should look into an android, but have a mobile version of Ubuntu installed, if there is one yet. I know Kubuntu has a version: http://www.kubuntu.org/news/10.10-release