HDMI 1.3 will NOT need a new cable and does NOT require a new connector. The quote on the linked website is misleading when it says "the new connector offers the potential for enhanced..."
The use of the word 'connector' is very misleading in this context as it refers to the HDMI standard not the physical adapter.
There is a great interview with Steve Venuti, Director of Marketing for HDMI Licensing LLC that answers many of the common HDMI questions.
http://www.electronichouse.com/info/...mi_basics.html
That said, HDMI is completely backward compatible with previous HDMI and DVI standards. You can connect a HDMI 1.1 device to a 1.3 device without any problems using any standard HDMI cable or vice-versa. Any newer features ENABLED (not mandatory, but available) in the newer version, if supported by the device, will not be available to the older device. Example - a new HD DVD player that supports HDMI 1.3 and can pass the new Dolby TrueHD to any device that supports it. But, if you connect it to a receiver or TV that only suppports v1.1 and Dolby Digital 5.1, you will be able to transfer DD5.1 instead.
The new physical connector that everyone is confusing this with is a new "mini-HDMI connector"
http://hdmi.org/resourcecenter/mini.asp

This new connector is analagous to the mini DVI connector found on many Apple laptops or the mini USB connectors on cell phones, cameras, etc... There is no difference in the standard, but rather a smaller form factor connector that allows for integrations onto smaller devices such as camcorders, portable dvd players, etc... Its use will be no different than a Mini-USB to USB cable. The announcement of this new physical interface just happens to conincide with the announcement of the HDMI 1.3 standard and could very well be integrated into devices that utilize previous versions of the standard as, again, version standards are backward compatible and there is no difference in the connector pin out other than being shrunk.
USB -
Hope this clarifies some of the confusion - of course, that was the point of HDMI - single cable connection that takes the guess work and clutter out of connecting digital devices.
Short story - No new physical connector or cable is mandatory or even in existence for HDMI 1.3. It is a new standard for available features. The new Mini HDMI connector is compatible with all current HDMI implementations and is simply for smaller implementations similar to Mini USB connectors.
Cross posting this over at HDBLOG.net (the target of the news article)
James Depew
www.linksysinfo.org - 3rd Firmware, Hacks, and Support for Linksys wireless routers.