ALL those expensive iPhone accessories you own, the stuff that plugs into the bottom of the device - speakers, docks, chargers etc. They're about to become obsolete. Tech blog TechCrunch reports that Apple plans to change the design and size of the connector for the iPhone 5. The old 30-pin connector, which has been the standard since the third generation iPod, is to be replaced by a 19-pin mini connector. The new port is similar in size to the Thunderbolt port available on many MacBook devices but it is speculated that the pin-out will be different. Leaked video footage claiming to be of the iPhone 5 shows a smaller connector. Tech blogger Robert Scoble said the change would give Apple a tighter control on iPhone accessories. "It will be nearly impossible to make unlicensed devices," he wrote on his blog. "Unfortunately these design goals mean making obsolete the something like 10 power chargers in my home. Sigh." Mashable reports the iPhone's dock connector "is about to go on a diet".