Along with the ZS-S4iP Boombox, Sony is apparently coming up with three more iPhone and iPod speaker docks. First in the bunch is the Sony ICF-CD3iP CD clock radio that was leaked alongside the ZS-S4iP Boombox a little earlier on. The device has a hidden compartment that's actually the dock itself. The device works with both the iPhone and iPod, plays CDs, and comes with radio functionality. It will be available this September for $100.

The Sony XDR-S10HDiP is the brand's first HD radio. It has iTunes Tagging capability for the iPhone 3G and newest generations of iPod, letting you tag songs you hear on the HD Radio that you liked for future downloading to your player. Aside from the dock itself, you can use the stereo with other media players using the auxiliary input. It will be available this month for $180.

Finally, the Sony SRS-GU10iP is a docking speaker with a piano black finish. Offering high quality audio output, it's compatible with iPods and the iPhone 3G. It comes with a remote control and an auxiliary input. It will be available this September for $15.