Create a poll, and poll all your friends over the phone. This is great for RSVP events. Beats asking "Are you coming to my party tonight" to 10 friends.
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Lottery Results on Cell Phone
Ask 500 People
Writing a Mobility Mashup using Ringful API
RFacebook Ruby Gem
Text Your Customers Now
Java Wrapper for Google Chart API
Intro to Google Charts and gchartrb
APIs, mashups and code. Because the world's your programmable oyster.
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.