Skype have updated the Windows Store version of their app. The app has an enhanced snap view that is designed to make using Skype when snapped to the size easier. I tested the updated app and it does seem to be easier to operate when snapped to the side. Also there are performance improvements and bug fixes.
The app is free in the Windows Store.
– Enhanced Snap view for smarter multi-tasking
– Performance improvements
– General bug fixes