GuerillaTweets

"GuerillaTweets is a powerful mobile marketing and dialogue solution that extends #Twitter by making Tweets accessible via SMS. With GuerillaTweets, you can promote events, collect feedback or even have a conversation with more people by making posts instantly available to anyone with a cell phone. No Twitter subscriptions or smartphones required - just a simple text code is all they need to get your latest update or participate, anytime, anywhere."