It’s been a long time coming, but Twitter-addicts who sport BlackBerries will be glad to hear that Twitter will be launching its official app for BlackBerry on Tuesday evening, after several months of beta development. Beta participants will also receive the updates the next day. It should boast enough features to keep you well connected with your friends, such as timelines, replying, retweeting, and following. You’ll also be able to tweet photos, links, sign up for trending topics, or search for content using various criteria. What Twitter client are you currently using for your BlackBerry, and are you planning to switch over to the official client when it’s released?