Give it up, it's going to be a vPod. Nobody in Apple would have allowed mere PowerBook upgrades in this way. Look at the press it has received in every major news source. Apple knew they would generate so many articles on CNN.com or in the New York times with a special ceremony, and to dissappoint predictions of vPods and possible iTMediaS would be stock market suicide.
As for the argument as to how we fill our iPods:
1) Macrumors is hardly a representative sample of the iPod population. We tend to be huge tech geeks that definitely differ from many people (in a good way...) I personally would also enjoy an 80gig iPod, though only 40gigs would be music. Aside from using it as a backup harddrive, I don't mind paying a little extra to have free space on a drive for any particular reason. However, I am somebody with almost a terabyte of storage hooked up to his iMac, so I would suggest I am not the average user
2) I teach young teenagers from the post-napster age that believe 1000 songs is a lot. When they hear i have seven times that amount, they cannot comprehend the fact that there are that many songs that even exist. However, when these same kids heard a new iPod may be coming out, they got incredibly excited. People will buy vPods because they are new and neat, even though I probably won't. It's a guaruntee.
3) Many of us own lots of devices. It will be decades before technology buids one that suits all of my needs. I have a shuffle for lifting/running, currently my shuffle for my commute, and my dead-battery 20gig 2G lives in my classroom with a set of crappy speakers. I would love to have a new, large iPod for my commute. Heck, I might even decide I would want to watch last night's law and order on the way to work, who knows....The point is, to keep marketshare, Apple must appease users at every end. 80 gigs is not out of the question, and offering with a 40gig twin hardly reduces profit margins and manufacturing costs, while catching the eye of many of us nerds on Macrumors.
eh, class in 3 minutes