Audiophiles rejoice: iPods can play uncompressed/lossless music!
I was surprised to discover that my iPod Shuffle can play uncompressed WAV files, contrary to my mistaken belief that everything you transfer to the iPod gets re-encoded into AAC compressed format. Apple's uncompressed (AIFF) and lossless (ALAC) audio formats play fine as well.
But when will the iTunes Store ever have music available for download in a lossless format? Even tracks that are advertised as "Mastered for iTunes" are still in 256 kbps AAC compressed format. These days most users have more than enough bandwidth and storage space to accommodate a library of music in lossless format.