MISSISSAUGA, ON and SAN FRANCISCO, CA - Bell Mobility will be the first wireless carrier to offer Canadians full SMS (short messaging service, or mobile text messaging) support for interacting with Twitter. Twitter is a communication network that enables users to send and receive text based posts of up to 140 characters (known as "tweets"). Updates are displayed on a users profile page at Twitter.com and delivered in real time to those who have signed up for them. Twitter updates can also be received through integration with other social networking sites such as Facebook and MySpace, or via SMS, RSS...