DSLR Controller app + Android smartphone = DSLR monitor.

Use your Mobile phone As a Remote Control to your DSLR Canon

DSLR Controller App - Wifi & Saving Images

Using DSLR Camera Remote in the Studio

Control SONY Camera with Android Remote shutter

Tutorial - How to connect Android to Canon DSLR - Who needs a flipscreen?

Use Android Smart Phone as a DLSR Liveview Monitor & Remote Controller

TUTORIAL | How to Use the Altura Photo® Universal Wireless Remote for DSLR Cameras