Cult of Mac has an interesting look at Apple’s Dock Connector, and likely changes coming to the ubiquitous cable:
As we’ve seen, there are two main reasons why Apple has kept the 30-Pin Dock Connector standard for so long: it makes it much easier for accessories to communicate directly with iPhones, iPods and iPads, and Apple has a lucrative side business selling “Made for iPod, iPhone or iPad” certifications to accessory makers.
The result is that after ten years, there are hundreds of millions of accessories in homes and store shelves that require a 30-Pin Dock connector. Any change to the connector Apple uses is going to cause a major upset amongst both consumers and Apple’s partners.
If you’re a geek for cables and accessories, check out the link.