Skype released the newest version 5.8 for Mac OS X.
“We’re making Skype video calls better. When you’re talking with someone who is using Skype for iPhone, Skype for iPad or Skype for Android and that person rotates their mobile device from portrait to landscape (or the other way around), Skype for Mac will now detect this and automatically re-orient the video call. If you’ve held or plan to hold a video call with someone who is using Skype for Windows Phone, the same auto-rotation feature is already supported.”
Skype 5.8 features :
new slim contact list,
automatically reorienting video calls,
OS X Mountain Lion support,
You can download the new version from here.