Let the hive mind of Engadget get that for you.
"What is the best wireless surround sound speaker solution? I have a home theater where running wires is just not feasible. I have my own speakers, so I don't want a system that has speakers with integrated wireless. I've done a far amount of research and have only come across a few companies that even offer a reasonable solution: KEF, Kenwood and Rocketfish. Is there anything else out there? What do you recommend? Thank you!"
on topic: id agree that it is sounding like either a change in hardware that wont be noticeable to the consumer, or perhaps its a larger/smaller drive. Being that Sony just shot down more of the 40gb rumors im not sure i would vote that its a new sku, but who knows.... perhaps they can play on their own words and release a cheaper sku stating "this isnt a price drop, its simply a new package". as always, well have to simply wait n see what it is