Xorro-Q from Edis - voting software without any special hardware. Xorro-Q enables an audience or class to interact with the presenter’s computer and any interactive display or white board, using their own mobile devices:  laptops, mobile phones, i-Pads or tablets. Teachers and presenters can send questions to participants' devices, who can vote and reply in text. No need for expensive, bulky and laborious hand held devices. Results are displayed for all to share. More ...