iPodLounge has an interesting review of this speaker system. Verdict? Great sound, great price, definately worth a look or two.
It’s foldable, and is the first (truly portable) one to come with a subwoofer (that’s the speaker at the back). You can connect it to your computer and use it as a docking station. It works with all models of iPods, even the Shuffle, though it will only recharge dock-connector equipped iPods. Sizewise, when folded up, it’s about as big as a hard cover book, which is not a whole lot.
Officially, it can be had for 149$, but it’s selling everywhere for 85$, or less.
Read the review.