Apple blog iMore has "heard" from unnamed sources that Apple is looking to replace the venerable 30-pin iPhone, iPad and iPod dock connector with a smaller, space-saving successor that will possibly make a debut in the company's next generation iPhone.
An updated “micro dock” could make room for bigger batteries, 4G radios, and other components far more important to the iPhone and iPad in a PC free world. As iMore points out, the current dock connector isn't huge, but as devices continue to get smaller and thinner, every little bit counts.