1) I don't really see why you would want to limit the file browser to
just a few dirs, rockbox has traditionally been about user freedom so
i would suggest letting them browse the entire fs.
On an mp3 player, your music probably sits in a /music/ location, but on
a PC or advanced mobile, it probably is a few levels deep before your
data begins. So having a way to set a 'virtual' root or folder sounds
good to me...
For example, on my n900 it's /home/user/MyDocs/Data/Music (OK, the
/Data/ is an extra that could be dropped, but you get the point). And
nobody is interested in playing files located in /bin /boot /dev /etc ...
/Peter
