Skype 4.1 beta for Windows adds screen sharing
When you're chatting with a Skype contact, you can now click a Share button in order stream your entire desktop or just a portion of your screen with your contact.
Skype 4.1 beta for Windows also allows you to import contacts from other services including Gmail, Windows Live, Yahoo!, AOL, and LinkedIn. You can also send contacts to other Skype users and there's a birthday reminder feature.
The update also brings some bug fixes and audio and video improvements.