What's interesting to me is that the current Dell XPS 13 (9370) is physically just a little bit bigger than an 11" MacBook Air and quad-core i7. Its CPU and GP

What's interesting to me is that the current Dell XPS 13 (9370) is physically just a little bit bigger than an 11" MacBook Air and quad-core i7. Its CPU and GPU aren't as fast as the new 13" MBP but as a rival to the MacBook Air it's very competitive. I have a Developer Edition for evaluation and keep it in an old MacBook Air 11" case.