Twitter has pushed out an update for both the Android and iOS mobile apps which brings back a few popular features as well as adding a couple new ones. Also, owners of the Kindle Fire will be happy to know that the Twitter app is now available via the Amazon App Store, and if you happen to own a Barnes & Noble NOOK Color or NOOK Tablet, you can expect to receive the app on February 23rd. So what’s new? According to the Twitter Blog, here’s what you can expect: