We've seen an overabundance of iPod docking speakers, so it shouldn't be too much of a surprise to be bombarded with Qool Labs Xensaxion for your Motorola ROKR. A neat little gadget, it's a pair of docking speakers that also allows you to charge the phone, synchronize your files and even take a call using a hands free option. Also works with PCs, desktop, notebook, MP3 Players, CD players and even a portable DVD Players through a a mini-jack audio input. No price just yet.
Best pricing on the ROKR [Shopping.com]