"The Galaxy S3 has a different microUSB port than other Android devices, as the port’s pins have been rearranged. That means the Galaxy S3 will not work with standard MHL (Mobile High-definition Link) adapters, which let users connect smartphones that come with microUSB ports to big-screen TVs."
Does this mean standard Micro USB cords won't work with the S3?? If so, the 10+ cords will become useless- not cool.
In looking at the pictures online it is certainly difficult to tell if the pins are arranged differently. However, Samsung is going to be selling a wireless TV dongle for TV streaming and it works at a full 1080p, so take that for what it's worth.
Link showing the dongle (click "AllShare Cast Dongle" at the top of the page):