Remote photography isn't for everyone and setting it up for yourself can get expensive. Over on DSLR Film Noob, the team show how to use a hacked wireless router and a tablet to create your own wireless camera control and monitoring system.
The crux of this system is the TP-Link TL-MR3040 Wireless Router and some custom firmware that will allow it to work with a DSLR camera. Once it's set up, you'll just need to connect it to your camera, grab a DSLR controller app for your phone or table, and you'll be all set. It's a cheap way to control your remotely control your camera and it looks like it works pretty well. Head over to DSLR Film Noob for the full set of instructions to get it working.
TP-Link LR-MR3040 Wireless Field Monitor with DSLR Controller [DSLR Film Noob via DIY Photography]