Skype for Android has been updated today, a major release by the looks of things as we're hitting version 4.0 with a major redesign. Skype has passed 100 million downloads on Android, and has now been totally redesigned to look like other platforms' versions.
Skype 4.0 for Android includes a cleaner "conversation-first" UI, which shows the instant messaging part of Skype in a brighter light. It's no longer thrown to the side like previous versions of the app. You can now tab through different parts of the app, and change tabs using swipe gestures. Skype have said that underneath, it has been "rebuilt from the ground up" in order to be more reliable, and most of all, faster.