TUAW reports that Apple will add a 19-pin connector to the next iPhone, replacing the venerable 30-pin connector that has been around since the third-generation iPod

The new port has been glimpsed in both blog posts and a video, and is apparently similar in size to the MacBook Pro / MacBook Air Thunderbolt ports. However, Biggs was told by three manufacturers that the pin-out for the new port is definitely different from Thunderbolt. These manufacturers all agreed that the new 19-pin dock port is being developed by Apple.

What does that mean for accessory manufacturers? They'll be anxiously awaiting official word from Apple about the new dock connector, and will most likely have to develop adapters that connect the new iPhone to old 30-pin accessories.

  Next iPhone may feature new 19-pin dock connector