You know what's confusing about trying to keep up with all these gadgets? The categories. I feel we've gotten a little out of control with all these. In my mind, it's helpful to think about it as two broad categories: desktop computing, and portable computing. Everyone talks about the pros/cons of these devices, and they they start getting into little debates about how a netbook does this but a laptop does that, I think that can be confusing if you don't quite understand the technical differences.
Anyway, here's my master list of the categories I've seen mentioned:
laptop
netbook
desktop replacement (annoying term)
ultra-mobile-pc (UMPC)
tablet
tablet pc (different!)
tablet netvertible
tablet convertible notebook (bigger version of netvertible?)
notebook (?)
And each of those can probably have a regular consumer version and an "enterprise" version. The difference? Not much. Maybe a few bits of hardware that are more powerful. Superficially, the enterprise stuff will have better cases and just be built more solid generally. Why that has to be such a big deal, I don't know. I don't mind that, but I do get frustrated when some things on the consumer model are better than the enterprise model (see my previous comments). That's totally a Sony type of thing.
Of course it doesn't help when people start talking about intel's different chips: low voltage, ultra low voltage, regular, i5, i7, core, etc. Sheesh. Once again, apple doesn't really get caught up in this. They keep it simple. Fortunately, I'm starting to see manufacturer websites being slightly more helpful in helping you figure out the differences, but many are still very confusing. It's really a culture that's been developed. it's not any one company's fault, but they do encourage it because it helps them financially. See, the reason why apple can keep it simple and get away with it is because they know their product is very good and there really is no competition. So they can just come out and say: we're selling a ipad, it's $49, and that's it. But other companies have to deal with so much competition and so many models of different laptops, chips, etc., that they have to emphasize all the little technical differences. The problem is that it makes it hard for a user (supergeek or not) to really figure out why i need this device and not that one, and so forth.