basically in my view (it's a view, a personal respectable view, if you accept the idea) the Ipad and tablets are the future
1 piece against the standard 2 pieced 'notebooks' 'laptopts' 'ultrabooks' etc
technology didnt allow ONE piece some years back, now it's possible
all directions point to POWER and REDUCTION of size+weight (whitin the limits of enjoyment x WhatIsTheDeviceFor)
The Ipads came after the galloping of the SmartPhones (flat, flatter, powerful, cheap)
the idea of the Airs is just the FIRST development (step) after the BULKY laptopts of the past, and some people still must realize that is possible to write stuff on a touch screen rather than a fisical keyboard (but of course you need a quality screen at a Mass cost)
Technology was at the side of AIRS before than the Ipad(tablets) now in some years (1-3?) for the trend i talked about above (power-size) who is looking for Portability has to go for a future Ipad, the AIR concept is son of the recent past (2 pages/sides tool)
who went for an AIR (11-13) did it because of :
1= ultra limited weight
2= concentrated power (the most possible)
Ipads are the logical consequence, the next buy of who thinks like that
but they do still lack 'power' the gap between Tablets and Airs
which in my opinion is gonna be erased sooner than later.
if that wasnt clear, or if you dislike it, amen