Microsoft has announced that Windows Phone 7 device owners can now download Skype software directly to their device or from the Windows Marketplace on their PC.
Skype for Windows Phone Beta, launched on Monday, comes with features such as free audio and video calls to other Skype users over 3G, 4G or Wi-Fi, as well as the ability to call landlines or mobile phones for a fee. Group chats and one-to-one instant messaging are also available.
Link – http://blogs.skype.com/en/2012/02/skype_brings_voice_and_video_c.html