Although the form factor and actual size are still unknown, TechCrunch has independently verified that Apple is working on adding a 19-pin port, replacing the current 30-pin port, to the new iPhone. It is a move that will surely send shocks through the iPhone accessory ecosystem.

The new port, partially shown in this Mobilefun post as well as in this video, is similar in size to the Thunderbolt port available on many MacBook devices but I’ve been told by three independent manufacturers that the pin-out will be different.

Apple’s 30-pin ports have been the standard since Apple released the third generation iPod . The connectors offered structural stability when connecting to most accessories but it’s clear – especially with the introduction of the MagSafe 2 port – Apple is more concerned with space savings inside each device.

Three independent manufacturers all agreed that the 19-pin dock port is in the works and many accessory manufacturers are facing an uneasy few months as they wait for official news of the standard to be announced.