Love to try this out

I don't know if anyone else has been trolling the App Store, but I saw Talkboard the other day and I think it might be interesting.  It comes from the folks who do the "Go To Meeting" software which is pretty powerful and useful for on-line collaboration.  I'm trying to figure out how it might be useful for our meetings...though I wonder if virtual meetings, like I could use today, would make this useful, but I can imagine it working in a classroom with multiple students signing in to contrbute notes that could go the board about a poem, a picture, or some other piece of work which they were analyzing.