The new Messenger for Mac software just came out. Key new features: corporate messaging support, new interface, and ID pictures.
Windows users have been enjoying video and voice for the longest time. And it took years for Microsoft to finally add "Pictures" to the new mac version. Even the 3rd part Mercury (http://www.mercury.to - an alternative Messenger for Mac) has had all these features including video for quite a while already.
What the F@$# is Microsoft doing??? It might be cheaper to outsource their development to these guys!!