Ever been subjected to death PowerPoint where someone basically reads the information on screen for hours on end.  Well this little ditty can spice up a presentation by getting live audience feedback via twitter that will update instantly on screen an engage the audience in seconds.  Yes Polleverywhere have come up with an app that you can instantly as a question such as what is your favourite colour?  Your audience Twitter their response and it collates the data and presents it live on screen theough PowerPoint.  Both free and Paid versios are available of course - Check it out here.