WHAT'S ON MY PLATE? With Knewton's blockbuster announcement with Pearson, Pearson's "open" LMS release, Blackboard's plan to be more OER-friendly, and all the buzz about Apple and Google's ongoing education app initiatives, it's easy to get lost trying to sort out all the hoopla about learning platforms, besides the fact that they seem like insatiable Cookie Monsters hungry for more content and data. Audrey Watters asks a number of good questions, beginning with: what exactly do we mean by a platform? (She points to a very helpful explanation by George Siemens). And what are the pros and cons for developers and content providers?