Yeah, I know the 2 years thing, but if you are BlackBerry 10 users you should check for Blaq update in BlackBerry World. The Twitter client is now up to date with the new 280 characters for tweets.
Blaq is known as the most popular Twitter client for BlackBerry 10 (including the Native BlackBerry Twitter client). The app is available for $1.99 and even with the 2 years support i think that it still great app to purchase if you use Twitter.
This update include translation fixes.