red:green

Thu, 17 Jul 2008 18:16:00 -0400

Closing the loop between speakers and audience

A couple of years ago, conference facilitator Jerry Michalski introduced a number of people to the concept of “red:green” cards. He described them by saying:

Ever wish you could talk
back to the speaker at a
conference?

To offer approval?
or register dismay?

Use red:green!

These cards are a clear, yet unobtrusive, way to bring the audience into a conversation without having to disrupt the flow of a thought and without having to deal with voting clicker boxes or microphones. They’re a wonderfully elegant way for an audience to give respectful feedback in real time.

red:green is the iPhone implementation of this idea, and has the advantage that it can be used in the dark. Just hold up your iPhone while in the audience to display either a red or a green screen. Click on the screen to switch the color. It’s that simple!

red:green was written by Christopher Allen, co-author of iPhone in Action: Introduction to Web and SDK Development, for use by participants at iPhoneDevCamp 2. This iPhone application is free and will be released under the open source MIT License as soon as the Apple’s iPhone SDK NDA is lifted.

red:green is available now at the iTunes App Store.

Support pages for red:green are available at GetSatisfaction.

Apps from iPhoneDevCamp.org

red:green