It's not that the tiny 11.6-inch thing is too netbooky.
The new Air is full-powered and if it has quality problems, they're not as bad as those of netbooks -- whose ultracheap components aren't suited for portable computing and keep shaking loose or breaking off even with light use. And the keyboard is apparently easier to use than netbooks, which are a challenge for anyone, but especially those of us who can fat-finger a full-sized keyboard.
The problem -- other than the IT porn commercials in which it is featured as an object of lust for geeks everywhere -- is that no matter how fast or beautiful, it is still a Mac and is therefore subject to limitations defended as "design elements" by fanboys and that would be derided as simple stupidity from any other PC maker.
In this case that means a solid state drive rather than a hard disk drive, and no option to switch to anything but a larger SSD.
Apple was the first to ship a PC without a floppy drive; everyone (including me) thought that was stupid. Within a couple of years, everyone quit using floppy drives. Apple also (reportedly) killed the CD (though some are still carrying the torch), may have killed Java, at least on its own platform, has made attacks with intent to murder on Flash,
Apple also pulled Firewire and ExpressCard support from the MacBook in 2008, which cut a huge swathe out of the devices it could talk to. Apple didn't replace those commonly used ports with anything, just eliminated them.