None of these solutions are perfect, but just fyi: 1) Samsung has released the Galaxy NX: a mirrorless interchangeable lens camera, which has a DSLR-sized APS-

None of these solutions are perfect, but just fyi: 1) Samsung has released the Galaxy NX: a mirrorless interchangeable lens camera, which has a DSLR-sized APS-C sensor, but no actual mirror. The back is essentially just a big Android phone. 2) Sony sells the QX-10 and QX-100, which are just the lens, and you wirelessly connect them to your phone. The QX-100 has the same 1" sensor as the best pocket camera you can currently buy (the RX100). 3) Both Sony and Canon make wireless cameras (Canon 6D [full-frame], Sony RX100 MII [1" sensor] or A7/A7R [full-frame], maybe others), that let you connect to a phone or tablet and view a live feed of what the camera sees, change the aperture or other settings, trigger the shutter, and receive photos on your device. I'm unclear how open the Canon API is, but Sony has their own ecosystem of interesting apps (http://playmemoriesonline.com/ http://playmemoriesonline.com/) that let you do things like set-up time lapses. The Sony UI is pretty clunkly though, I would greatly prefer an open API.