Saw a great demonstration at a Google Apps For Education Summit in Burlington, MA, USA. Here is my variation of it: Create a Google Document in Chrome and have different student groups place their cursor in different locations on the page. Have them use their mobile learning devices' Chrome Browser (phones, etc) to use the speech to text option and see/hear their thought process as they solve a problem. Such an easy way to get a transcript of their problem solving!
Not new technology, just combining what we already have!