Skype brought deeper Facebook integration to its Windows application with version 5.5 this summer, and it's now seen fit to bring the same functionality to Mac users with the beta version of Skype 5.4. As with Skype for Windows, that will let you do things like chat with your Facebook friends, read and update your news feed, and even "Like" posts -- all from right in Skype. What it doesn't bring, however, are any significant changes to the still-controversial UI, which we're guessing will be enough to keep some folks on version 2.8.