I can't quite cut the cord; so I have an MBA and a big iMac at work. But I can see the not-too-distant future when a laptop will be sufficient, especially as I

I can't quite cut the cord; so I have an MBA and a big iMac at work. But I can see the not-too-distant future when a laptop will be sufficient, especially as I no longer write much CPU intensive video software. I also practice "disposable computing"; I change hardware every six months or so (the older machines trickle down to friends and family), so the overhead in changing is pretty minimal. For as much as I bitch about Apple, they make this very easy (unsurprisingly, upon refection, as they love them their 40% gross margins on hardware.)