I find the hardware disappointing. I expected it to be more robust. And I am skeptical about the ergonomics. The content will be key, and I guess that's the main message here. This seems like one of those devices from Apple that could be of the "I didn't even know that I needed it" variety. However, I still think there's the potential for a BigFlop here. It is, after all, just a big iPod Touch/iPhone. Apple did a nice job, though, on the price point. However, given the aforementioned, it is probably priced where it should be.
I think I'd rather have a MacBook.