| 20090187935 | Two-Way PDA, Laptop and Cell Phone Audience Response System - A two-way PDA, cell phone and laptop audience participation system providing the ability for real-time audience participation in questions and surveys and for real-time generation and display of results. A plurality of two-way wireless communication devices such as PDAs, cellphones or laptops are provided for use by participants at an event. At least one two-way wireless communication device, such as a wireless tablet, is provided for use by a presenter. Communications are between the presenter and participants are managed by a central server, wireless access points and routers. | 07-23-2009 |