I also received the invitation today....and came right here to check the threads on this.
It says the Whiteboard is presented by Delta Skymiles and powered by uStamp.
And..."The Whiteboard was founded by uSamp. uSamp provides online market research panels and SaaS technology to corporations and market research firms around the world to help them gain competitive intelligence through online surveying. By carefully providing answers to market research surveys, our panelists are personally helping to shape the business strategies of executives around the world".