This was a very controversial product when it came out. Most tech-blogs made a lot of fun of it even before it came out officially.
I remember CNET reviewed it and said it actually made
mp3s sound better. For all other purposes, it is just like an external sound-card, but a very good one at that. And it does take aux-in input from a standalone MP3 player/other audio source too.
Anybody using one here?
EDIT: CNET's review:
Creative Xmod Reviews. External Audio Adapters Reviews by CNET.