Honestly, this would be my killer app. This would be the only reason I'd buy an iPad Pro, and might be the reason I'd buy two of them. Screen real estate has a bigger impact on my productivity than performance. It's hard to go from the office, where you have several large displays, to the road or set up in a dining room, the guest room, etc... where you only have a 12-13 or even 15" screen. If I could throw an iPad Pro into a bag with my rMB or a 2015 MacBook and double the pixels, I'd be thrilled! Yes, I know there are a few third party solutions out there... been there and tried that. Sorry, but they suck. If Apple did something so that it just worked and was supported, I'd be all over it!!!! Anyone else interested in this?