Here is a useful accessory for your iPhone, the Photofast Card Reader iPhone Dock, that connects to your existing iPhone dock.
The Photofast Card Reader iPhone Dock lets you sync and charge your iPhone with your PC or Mac via your existing iPhone dock, and features a built in memory card reader and two USB 2.0 ports.
It supports a variety of memory cards from SD/SHDC to MMC ans MS Duo, and it measures 80 x 57 x21mm.
If you want one the Photofast Card Reader iPhone Dock is available for 3,480 Japanese Yen about $37 from GeekStuff4u.
