bnewton

Unfortunately XPS Developer Edition does not support external 4k displays @ 60Mhz like Dell's own P2715Q. If that kind of thing matters to you.

Otherwise I think it a great machine.

I've checked out the Macbook Air at the Apple Store a few times and I'm so close to just selling my i5 MBP for a fully spec out 13" Air. I like the idea of having such a light and still powerful system for web and ios development. From the sounds of it I wouldn't be giving up to much going with the Air over the MBP.