I don't want to buy an external monitor, and it's not really an option for me as I'm never in one place that long. I know there are apps like AirDisplay that let you use your iOS devices as a monitor for your Mac. Has anyone done this personally? I've done some extensive Googling on this matter, and it seems like it works good but I can't really gather how well it runs. Specifically, I'm looking to do this on new Apple hardware. Retina iPad/iPhone, and Retina MBP. I know it's over WiFi, so you obviously can't do anything intensive with it. But does it work good for basic uses? Can I read documents/PDFs and generally browse the desktop fluidly? If you do this, tell me what your uses are. Would AirDisplay be the one and only app choice to do this? Thanks.