Check this out - I just read on twitter: (unconfirmed)
“this is very cool of Google - Egyptians can tweet by leaving a voicemail, no Internet needed”
We worked with a small team of engineers from Twitter, Google and SayNow, a company we acquired last week, to make this idea a reality. It’s already live and anyone can tweet by simply leaving a voicemail on one of these international phone numbers (+16504194196 or +390662207294 or +97316199855) and the service will instantly tweet the message using the hashtag #egypt. No Internet connection is required. People can listen to the messages by dialing the same phone numbers or going to twitter.com/speak2tweet.
We hope that this will go some way to helping people in Egypt stay connected at this very difficult time. Our thoughts are with everyone there.
http://googleblog.blogspot.com/2011/01/some-weekend-work-that-will-hopefully.html