The new AppleTV must have some form of flash storage, after all, it gives you 3 days to watch HD Movies, so the data has got to live somewhere. I wouldn't expect Apple's shiny new data centre to be able to serve all that content via streaming! (imagine the bandwidth needed for entirely on demand HD streaming... 😱 ) Plus the device would have to buffer incase of network interruptions, so I'm guessing 4-8gb of 'invisible' storage maybe?
Anyway, we'll see when iFixit get their (exceptionally skilled) hands on one and reduce it to it's base elements... 😉
Just like to say, I am so glad I was right! I can't wait to see where this goes! 😀 😀