For all the incredibleness of the MacBook Air’s new battery, the device is still dependent on WiFi hotspots and, let’s face it, the internet is an essential ingredient these days for getting most things done. Now, keep in mind that adding 4G radios to the MacBook Air likely poses its own share of challenges that Apple has clearly decided to avoid for the Mac, at least so far. In general, it seems like 3G/4G radios have never been very popular in notebooks for some reason. Plus, a 4G radio would add weight to the MacBook Air—renowned for its thin and light design—and, of course, affect that incredible 12-hour battery or, in PCMag’s case, 15-hour battery.
I do wonder if we’re to the point where an LTE option for a MacBook might make sense. Weight and design were and are certainly issues, but battery life was undoubtedly another key which is probably moot now with these insane battery times.
Yes, it’s a pain dealing with carriers (just in the U.S., let alone the world), but a lot of plans already offer shared data, so this could be just another device.
Update: As many of you have noted, OS X would have to be tailored so as to not do things like download OS updates when using the data connection. Seems like an easy enough thing to implement.