Skype released a beta version of Skype 4.0 for all those, who have fun checking out new products.
The user interface of the Skype 4.0 beta.
In addition to the main features like free Skype-to-Skype calls, instant messaging, phone and mobile calls and SMS, the bets version also offers an improved video conference quality and the possibility to combine several small windows to a single big one. Furthermore the program is said to make working with Skype certified hardware much easier.
Unfortunately only Windows users can check out the beta version. Follow this link to download the 24 MByte package.