Check out this cool circular shelving unit designed by Roderick Vos for Dutch compay Linteloo. The top unit spins around like a carousel allowing access to all sides.
Would be great in a corner for a room that doesn't have that much wall space available or in a open loft type setting. It was recently on display at the Milan Design Week 2008. No word yet on availability in the States, but you can check out more of Roderick Vos' work here, more on Linteloo here. Via Designboom.