Amarok 2.0 was released earlier this week. I only found out late Wednesday night, after checking my email before bed I decided to quickly drop by the Kubuntu forums; must have had a feeling.
Of course I got very, very excited being the semi-geek that I am and wound up staying up until 5am playing with it.
It really is the nicest music player out there - kicks the shit out of iTunes, but then so does Songbird.
Here's a screenshot of the shiny new interface with built-in Wikipedia info:
Some instructions for downloading & installing on Ubuntu