Neowin has gotten a chance to play with the new Metro Modern UI app for Skype and put it through our initial gauntlet of test for usability and general stability. The app is still in preview state but is relatively solid for performance. We conducted several calls with one and multi-person chats with little issue.
The UI is fluid and dare we say fast too. The Skype team has done a good job at making the application finger friendly and so far, we have not had any crashes with the platform.