Skype Blog: The popular service Skype is now available in version 1.0 for Windows Phone. The app allows free or cheap calls, video calls and chat via WiFi or 3G.
It's still limited in scope
New update lets you have a video call without having a Skype account. You can start a chat through a link and can use it at any time as it does not expire.
With the sudden upswing of video conferencing needs due to working from home, Microsoft has decided to add a new feature to Skype.