Over the years the number of people who attend conference presentations and have laptops out to take notes has grown and grown – understandable given how laptop prices have dropped.  But watching a presentations here at JBoss World Orlando, has left me thinking that there is an opportunity to be had in terms of allowing peoples laptops to show and record what is being shown on the presenters screen, and allow the laptop user to annotate as things went along.  After all if you’re in a medium sized conference suite amongst a see of upright laptop monitors it can be hard to see the presenters screen clearly.  The basic idea isn’t exactly new either  after all web meeting tools such as GoToMeeting pretty much do this.  The only difference is that the server would need to run on the presenter’s computer equipment through a local wireless hub.