1. Last minute room changes can be broadcast to all delegates (helpful at bigger conferences with parallel streams)
2. Pros and Cons
2.1. Pro
2.1.1. Immediate response
2.1.2. "Wow"-factor
2.1.3. Non-traditional presentation platforms for sponsors may attract new money
2.1.4. Better audience involvement and attention
2.1.5. Improved learning experience
2.2. Con
2.2.1. Yet another technical tool to carry
2.2.2. Devices may get lost or not returned
2.2.3. Rental cost
2.2.4. Not everyone is tech-savvy
2.2.5. Learning curve to handle the device (particularly the more complex devices like SpotMe)
2.2.6. Attention can be pulled away from what happens on stage
3. Vendors
3.1. http://www.poken.com/
3.2. http://www.gb-mediensysteme.de/gbinteraktiv.html?L=1
3.3. http://www.iml.co.uk/
3.4. http://www.crystal-interactive.co.uk/
3.5. http://www.qwizdom.com/corporate/
3.6. www.ubiqus.com
3.7. http://shakespeak.com/en/home/
3.8. http://www.yel.me/
3.9. http://www.replysystems.com/
3.10. http://www.optiontechnologies.com/
3.11. http://www.meridiaars.com/
3.12. http://www.powervote.com/en/
3.13. http://www.einstruction.com/
3.14. http://www.spotme.com/
3.15. http://www.turningtechnologies.com/
4. Functions and areas of implementation
4.1. Votings and polls
4.1.1. Live-votings during presentations
4.2. Surveys
4.2.1. Delegate surveys
4.3. Networking
4.3.1. Delegates
4.3.1.1. Virtual business card exchange
4.3.1.2. Business card readers
4.3.2. Exhibitors
4.4. Messaging
4.4.1. Delegates to moderator
4.4.2. Delegates to delegates
4.4.3. Exhibitors to delegates
4.4.4. Organizer to delegates
4.4.5. Annotations to slides and presentations
4.5. Information
4.5.1. Sessions
4.5.2. Venue
4.5.3. Room changes
4.6. Q+A
4.6.1. Built-in microphones for talkback
4.7. Simultaneous interpretation (headphones)
4.8. Sponsor presentation
4.8.1. Integrated landing page
4.9. Fundraising
4.9.1. Silent auction
4.9.2. Quizzes at fundraising events
4.9.3. Sponsorship
4.9.4. Web auction