For those of you waiting for a solid Twitter client for the PlayBook, your wait is now over. Blaq for BlackBerry PlayBook is now available for download. Blaq features include; in-app notifications, URL shortening, picture posting, retweet function, and a whole lot more packed into a pretty sweet looking interface. So, for the best Twitter experience on the PlayBook to date, head over to the BlackBerry App World and download Blaq for $1.99.