There are few iPhone accessories at the market especially outside United States until now , and some of their qual can also not be guaranteed.But many of the iPod accessory manufactures can produce high-qual good ,like USB cables ,chargers ,batteries,headsets ,and docks etc,and I even found this multifunctional eccentric (http://www.uxcell.com/mini-hifi-extension-docking-base-station-for-ipod-mp4-p-6609.html) serve ipod which were claimed to access every function that works on an iphone by a HK online superstore .While my question is that Which accessories of iPod&iPhone can be compatible? can this eccentric work on an iphone ?Thx