The companies are concerned that there will not be enough time to manufacture and ship new products for the holiday season.
One source expects that Apple will introduce a more stringent version of its Made For iPod/iPhone/iPad ("MFi") licensing program alongside the new connector, complete with more elaborate testing requirements and perhaps higher fees. It remains possible, however, that Apple may merely attempt to dominate the 2012 holiday market by selling its own accessories-perhaps including adapters for older accessories-then supply new connectors and chips to developers in 2013.
After the release of the iPhone, Apple instituted the "Works With iPhone" program. The program's new approval and testing procedures caused the delay of early iPhone accessories by roughly a year. Accessory makers are worried this will happen again with the new mini dock connector.