With iOS9 hints of an iPad Pro/the nice new multi-tasking features, I've been considering a change in my Apple ecosystem. Currently I use iPhone 6 for "ultra" mobile, a Macbook Air 13" for a laptop and a maxed out 2013 iMac 27" as a desktop. I'm a semi-professional photographer and have found the Air somewhat lacking when trying to do work on the road (e.g. Lightroom Exports...). My consideration would be replacing the Macbook Air with a hypothetical iPad Pro and a 15" Macbook Pro. This way I'd have portability when traveling sans-camera equipment, but would have the power and screen area when I do have to crank out images while on the road. Thoughts?