i don't use my n810 as a mp3-player, because i've a iRiver H340 wich i changed to a H360 by ?inserting? (don't know the right word - sorry) a 60GB harddrive.
but without my iRiver i would use the tablet with canola2 as mp3-player.
i have the crative ep 630 earphones, the best i've ever listened. they are the same as the sennheiser cx300 but costs just 1/10. i've bought 15 of them from china for 6€ per piece and have sold them here in germany for a much higher price. but I am using them, too, because they are so good.