If there is a market for this, great. But even though I do user support on a daily basis, I don't see myself using this anytime soon. I rather create screen casts or take screen shots. It's exactly the same thing, but I only have to do it once and then it can be viewed by everyone. I also like to have instructions written down, either in a support forum or in an e-mail. The user can go back and read the instructions again, if he struggles with the same problem the next time. Also, I can write most support e-mails in less then five minutes. Phone calls take way longer most of the times.