The twitter provided widgets that we use in all of our iPhone apps are currently down. We are aware of this issue and are investigating to see if there is any kind of workaround.
At this point, we do not have an ETA for when they will be back up. Unfortunately, the problem is originating from either an outage or a change to the widget mechanism on Twitter’s side. We have contacted twitter support and will hopefully have an update for you soon.
Thank you for your patience. Please check the developer blog view in any of our apps frequently for updates on resolution of this outage.