Android/iOS: Instagram released an update to its app that automatically straightens photos taken on iOS, and finally brings video to Android.
In both apps, you can now import videos to share directly from your personal library, which means you can share more than just the clip you took a few seconds ago. Additionally, if you're on iOS, the app can automatically straighten your photos before uploading them. Both versions are available now on their respective stores, or you can read more about the changes here.
Instagram [iTunes App Store]
Instagram [Google Play Store]