The official Twitter for iPhone app was updated last week to version 3.3. The major addition was the inclusion of the “Quick Bar”, this gave you a quick look at what’s currently trending based on your location. However, some users were complaining that their app crashed after updating… but now version 3.3.1 has been pushed out. The main upgrade is a fix for the crashing issues, security fixes and improved performance for those with several accounts. The total upgrade is 6.1MB and is available in the App Store.