Here's the info to add to the Wiki Add-Ons section
Unity Serializer FREE! UnitySerializer is a full level serialisation plug in. It enables you to save the progress of a game and restore it at some point in the future.
Fairly disappointed that I spent several days researching saving data only to discover Mike included a basic PlayMaker package in his FREE Unity Serializer.
Can we please get this added to the Add-Ons section of the Wiki to save others the frustration...

Edit: Oh and feel free to add these extras too
FORUM LINK