It''''s kind of amusing to limit the definition of collaboration to "the SharePoint partner ecosystem" given that a) email remains the #1 method used for collaboration in businesses worldwide and b) the nature of Office 365 and the development fabric that it has delivered means that focusing on a single workload (like Exchange or SharePoint) takes a very narrow perspective which isn''''t the way the world is moving. I have great difficulty in understanding how anyone or even a group of such luminaries could measure the effectiveness of collaboration without taking these salient facts into account.