Hello dear,i like your profile,am miss Anabel Cole,
please contact me through my email (anabel.colle@yahoo.in)
because i want to share something with you.and also give you my picture,
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Interesting, Hernan! One thing you might want to check out is our Personas for Concepts tip sheet. It's a helpful outline of the kinds of accessibility needs we're designing for in this challenge: http://bit.ly/vote_personas. Perhaps you'll be inspired by one or more of the personas and have a think about how your concept could be further extended to meet their needs? We're looking forward to seeing discussions flourish here and your ideas evolve. You can make updates to your entry at any time using the Update Entry button up there on the right.

Hi Hernán, I really like this idea! I've worked in very poor, rural areas in Asia and actually almost everyone can get access to a mobile phone. A few issues I thought of:
 - Would have to work with mobile companies to ensure the service is free
 - Include a function where you can review your vote, before sending? (so easy to type a wrong number)
 - As Paul commented, would work really well for simple 'first past the post' elections. More complicated systems such as Australia's preferential system could maybe be accommodated by a voting app on smartphones - but this would probably restrict coverage in less developed contexts.

Looking forward to seeing how this concept progresses!

Great concept with distinct potential, Hernán!
You mention a one-to-one correspondence between cell phone number and SSN (presumably Social Security Number).
In Australia this SSN would have to become a pin or number of the voters choice since we have no consistent number that applies to everyone.
The voting method SMS would be well suited to 'first past the post' elections, and warrants adoption in those circumstances.
Do you have any suggestions for referendum type polls or preferential voting?