A "small percentage" of Twitter users may have noticed the feature earlier this week, but the rest of us should officially have access to the service's archive tool soon. After downloading your own Twitter archive, you'll be able to launch an HTML file that provides a familiar web interface, but with vastly improved searching features and full access to all of your tweets since your very first day on the site. The advantage of Twitter archive is twofold: you'll have a backup of all of your tweets (and r