I don't think it has to be expandable for its intended target market. The rumored specs and price are almost enough by themselves, just give it a nice looking design and it will be an absolute winner.
It would be nice if the graphics card is CoreImage compatible, but I doubt it. As long as it is Quartz Extreme capable that will be good enough.
It would also be nice to have a Superdrive, but I think they left it out on purpose to differentiate with other Macs, and drive eventual upgrades. Most people don't use or need a DVD burner (yet), according to some surveys I've read about (but not seen myself.) Remember the price- $499. 99% of us would have never imagine that Apple would release a computer at that price. So that it's happening at all is pretty impressive, of course it's going to have some Apple-imposed limitations.
I'm really, really curious how this one will look (I'm sure it will look great!) I imagine they will stay with the iPod design motif as well. White, with a clear acrylic layer. The flat shape described in the story of course sounds like an iPod shell already.
I have an eMac that I upgraded to a DVD burner and 120 GB HD, so doubt I would ever buy this one. But I'm sure gonna tell everyone I know about it, everyone who sees my eMac loves it (all Windows users of course.) I would be tempted to buy one just to have one, if Apple's stock goes up like I expect it will (I own some shares...)
