Regardless, and getting back to the Mac Life article, it’s unlikely that we’ll see Apple natively support USB 3.0 because Light Peak is on the horizon — be that a distant one. In my humble opinion, with the slow adoption of USB 3.0, and its imminent obsoleteness with Light Peak around the corner, it wouldn’t make sense for Apple to introduce a technology that’s about to be replaced by a better one.
I still think we will see USB 3 as dropping support for USB won’t come for years, so why wouldn’t you just go with the fastest spec (maintain backwards compatibility). Macs could have BOTH after all. ((As seen with the FireWire and USB ports living side by side.))