Instead of relying on custom, OS specific, proprietary plug-ins, they can now easily build and maintain their apps using a few simple JavaScript APIs and have the browser do the heavy lifting.
HTML5 provides a standard way to interact with local files, via the File API specification. As example of its capabilities, the File API could be used to create a thumbnail preview of images as they're being sent to the server, or allow an app to save a file reference while the user is offline.
This video by Dave Knop covers the process of building your own DIY PVC shoulder rig for your camera (Also known as a Camera Stablizer). There are all kinds of PVC shoulder rig tutorials on the web, but this design is made specifically for a DSLR camera.