The one thing I'm afraid of is how resource-intensive certain classes of software are. I tried a netbook over a year ago and wouldn't want that kind of performance except in emergencies, even today every single IDE I run is a slow piece of crap on last year's maxed out macbook air.
I'm not sure the reality will turn out as good as the idea, at least not for several years yet. That'll give Canonical time to catch up to Microsoft, the latter of which isn't really popular because they've shown how easy it is to botch the idea.
If your IDE isn't using your whole hardware, it's probably not doing enough.
I spent the long NYE weekend in Washington, DC. On Friday night, my phone was stolen. This was, obviously, rather painful and distressing, not to mention inconvenient (being alone in the middle of a city I don't know very well, suddenly cut off from maps, yelp, wiki, etc.
Luckily, back at the hotel I had my laptop, from which I was able to remote wipe my phone, get contact info for my carrier to get service shut-off, and file an insurance claim to get a replacement phone.
The moral of this story: Beware of excessive convergence, and always have a Plan B.
I'm debating a yearly/bi yearly replaecment of a MBA instead of a bi yearly/triyearly replacement of the maxed out top of the line MBP.
How much is this going to hurt with two ACDs plugged into it?
This says they do.