Has there been any sort of documentation or anything like that released for SharePoint 2013 Client-Side Rendering/JS Link?
Anthing unofficial? Any dates for when documentation might be released?
As a primer on how to customize a field type by using CSR there is an article in MSDN How to: Customize a field type using client-side rendering and a sample code for it. An article How to: Extend the Geolocation field type using client-side rendering which describes how to customize the rendering of a field in list/view
Take a look at post Customize the rendering of a List View in Sharepoint 2013: Displaying List Items in Accordion in my blog which describes how to customize list view via client side rendering
Andrey Markeev also posted a series of articles about CSR, highly recommended:
7 Code samples that cover Client-Side Rendering/JS Link usage scenarios: http://code.msdn.microsoft.com/office/Client-side-rendering-JS-2ed3538a
Here is a complete Tutorial on JS Link with few examples that you can use -
Not sure how much does it respond to your need for documentation, I've got an article written a while back with code sources for download. You could do quite a lot just be using that http://nettitude.wordpress.com/2013/01/27/creating-a-carousel-in-a-sharepoint-app-using-client-side-rendering/
I think I found the answer, I've posted it here for anyone else looking at the same issue.
Here are the resources that I have found most useful:
Here is a complete Tutorial on JS Link with example that you can use -