I think a lot people think that way however I think many people will still want one for the larger keyboard layout and more versatile/expandable OS and hardware.
Tablets really falter, for me at least when they have to be used for extended periods of time on the go. When I commute to university or work I don't want to bring a keyboard dock and wireless mouse so that I can get proper work done. When I use tablets it's for light everyday tasks like checking my email or browsing the web.
With these new notebooks you have the light weight and portability of a tablet and the power of a 'traditional' computer. This PC can become a mobile workstation and it would simply need to dock into a number of thunderbolt devices to maximize the power it carries.
To the future! *raises glass*
Current tablets including the iPad are too slow for any serious use. Even web browsing it slow. The MBA is much faster.
My thought is that Apple wants to call this a Macbook Pro, minimum price will be 1799.00 and replace the 15" current model. Specs will be what they are, in all honestly equivalent to a 1000 bucks on the other side, they won't give anything extra since people throw money at them. If people made them work you would have a better ball game.
Then kill off the the 13' Pro and that leaves the Air as the only option as an entry level laptop. If their webpage is accurate the Air is never on the top sellers list. It's not at BB or Amazon either, so they can force the MBA down peoples throats. It will be accepted and there ya go.
My theory at least.
PS: No firewire nor ethernet as well. Kiss that buh bye.
It doesn't matter what people want, they will buy whatever Apple puts out and praise Apple to the high heavens. Apple could keep the current iPhone and not change a thing and call it an iPhone 5 and people will be camping out to buy it and brag about how great it is. Every business on earth dreams of customers like this.