Personalized Learning?

This has become a educational buzz phrase, but I am always hearing many different definitions. It is a way to meet learners at their level of expertise, ie differentiated instruction.  A way to allow learners to move at their own pace but still cover the required elements, ie individual learning. Seems to be some confusion on what a Personal Learning Environment really is. Going through my feeds I have come across exactly what it is. Here is the link, tell me what you think.  Rethink Learning