If you're the owner of a Nikon D3200 and want to view and compose images remotely on a mobile device, or even trigger and control some of the camera functions remotely you've got the option to purchase Nikon's WU-1a Wi-Fi adapter that slots into the camera's AV-port.
However, for the owners of most other Nikon and Canon DSLRs, remote operation and viewing is much more difficult to achieve as the WU-1a currently only works with the D3200. Enter CameraMator. This Kickstarter-funded project has developed a Wi-Fi module that slots into your camera's hotshoe and hooks up with Android and iOS devices that have the corresponding app installed.
The CameraMator device creates its own Wi-Fi network connects to. Then you can view and preview your images remotely on your tablet or phone screen and control some camera functions including aperture, shutter, ISO and white balance. The implementation of further features is planned for the future. CameraMator is now available to order for $299, a list of currently compatible cameras can be found on the Kickstarter page.