If you use Twitter on an iOS device then you might want to check for an update from the App Store. The application was recently outfitted with a few UI improvements and new features that you may find incredibly useful.
 
In the new 5.7 update you will get a new Tweet composer, this will make sharing photos on Twitter and allow you to preview what your tweets will look like before you publish them. The new design will allow a wider format than before, stretching out timelines in the application and making everything much cleaner in the process. You can also receive notifications when you friends finally come around and join the service. There were a few stability fixes and bug squashers that were added to the application as well in the update. You can check out the official update on the iOS store below.
 
more info: iTunes