Isn't this the new reality: Everything has become an extension of the mobile phone. I feel so out of sync with popular culture by not having mine in my hands at all times, even leaving it behind on more than a few occasions. But lucky me, I've got no less than 2 cameras which can be controlled via mobile device, namely my Sony A7 and my brand-new Olympus TG4!
In a more-perfect world, my phone would do the necessary pairing via NFC, so all I'd have to do is bring phone and camera into close proximity. But as it stands right now, I have to manually switch my old iPhone 4's wifi connection to the camera's network. I see that the Olympus also offers Bluetooth which is certainly a way to get around this bother, but unless BT data transfer rates have improved by orders of magnitude, I'd expect this to be much slower than wifi.
On the other hand, at $299 for Air, they're getting right down into impulse-buy territory aren't they. It'd potentially make a killer microscope camera, replacing specialized Nikon instruments which sell for thousands.
But for me personally, I'm thinking it's a bit like the Lytro camera: Seems like there's potential there, but I'll be darned if I know how to tap into it.