I predicted back in August, "I wouldn't be surprised though if this simultaneously launches the same day as the Windows 8 Surface tablet - it certainly would be one of the first apps I'd try out on the new tablet. "
Well, looks like I was right. Microsoft is releasing Skype for Windows 8 on the same date that Windows 8 and the Microsoft Surface tablet launches. I gave an early preview of the Skype for Windows app, which you can check out.
Looking at Microsoft's promotional video (below) it appears to show a later more refined version than the beta I checked out I see it will support Skype notifications (IMs) that pop in the top-right corner of the screen no matter which app you are running. This could be a videogame killer since it obscures part of the screen, which might result in your untimely death or loss in the game - so hopefully the app will allow you to easily silence the popups or have an exclusion list of some sort.
Otherwise, the Skype for Windows 8 (Metro-style) app looks pretty similar to what I tested. Here's the Microsoft promo video: