I recently purchased a new camera body. The Canon 70D. After the first 2 weeks, I can say I love this camera. One feature that is new to me is the built-in WiFi. This allows the syncing of an iPod or other device to view the pictures right off the SD card while the card is still in the camera. This feature also allows for remote shutter release by way of a button on the iPod. The application to use this feature might be to mount the camera at a location without regular access (i.e. top of a backboard at a basketball game) and capture photos from there.
In short, I am super excited about my new equipment and can't wait to get back out there and shot more events.
Cheers, Jim