Seems like a really tough position for Apple to be in, based on what I've read here. People are starting threads to make predictions, and most are expecting big, revolutionary stuff. Hopefully, that will happen, but how many bullets do they have in the chamber?
It seems to me that Apple is the type of company to do two things:
1. Come out with new, innovative products.
2. Make their existing, successful products even better.
If that's the case, don't hold your breath for a major update to the Mac Pro, Mac Mini or AppleTV. They simply don't sell. Don't get me wrong... I own a Mac Pro and and Apple TV, and love them both. I just don't think they get a lot of attention. On the other hand, people flock to the notebooks, iMacs, iPods and iPhones. I see them doing something to carry on the momentum of those products.
iMacs and iPods have recently been refreshed, so I'm not expecting much there.
I think the iPhone will get a capacity bump. The iPod touch is already at 16 GB, so there's no reason the iPhone can't be too.
I'm also hoping for the 3G network for the iPhone. But I'm also nervous that they might not do it just yet. They experienced a lot of backlash from the quick price drop. It may still be too fast to tell all their early adopters that, if they would have waited a few months, they could have had 3G.
I do believe that iTunes movie rentals will be announced, and be big.
At any rate, I think it will center around iPhone and iTunes. Maybe (hopefully) a new Mac.