11" MBA as an ipad replacement?

The 11" Air has a footprint only slightly larger than an ipad's. So with batt life, and cost aside could it in theory be possible to use an air as "an always with you" companion the way most people use their ipads? It requires the same space and effort as an ipad with a cover. And it resumes instantly, the track pad is big and works very well, there slim covers and cases for it. So im left wondering...

Could you take a laptop that small with you EVERYWHERE, like an ipad?