These players are finally starting to attract my attention. I think they are only one or two generations away from being irresistible. Combine the best features of the S9 and the O2 and I'm sold. Until then, I am content with listening to my old high-end Sony CD Walkman. Kudos on the Grados, Glath. I have iGrados for portable listening and love them. I prefer my vintage Stax electrostatics at home, but doubt they will ever be a portable version of that technology.
When it comes to current portable music players, I really like this one.