Skype have released a new version of Skype for Mac, removing the beta label and introducing group video calling as part of their Premium package, as well as a number of user interface and other improvements.
That package also includes live chat customer support, a seven-day free trial, and an option to either purchase a day pass starting at $4.99 or a monthly subscription at $8.99 a month.
More: http://blogs.skype.com/en/2011/01/mac.html