Apple Bluetooth Dual Dock discontinued
Mind you, the Dual Dock did give me various USB issues (not working through certain powered hubs, or when connected to certain USB ports on my Mac) so maybe we're better off without it. Strange how a simple piece of hardware like this can be buggy.
Mac Pro 2.8Ghz 8-core / MacBook CD 2.0Ghz, Mac OS X (10.5.4), 8GB RAM, GeForce 8800GT / 2GB RAM