Microsoft kept most of its upcoming Windows Phone 8 features under wraps today during a joint Nokia press conference, but Nokia appears to have accidentally revealed Skype's new Windows Phone 8 interface in a promotional video. The Skype app on Windows Phone 8, which will integrate into the People and Phone Hubs, looks like it will include hovering buttons over its video calling interface along with the normal chat messaging options.

There's also a Bluetooth icon, hinting that Windows Phone 8 users will be able to quickly switch calls over to a Bluetooth headset. While this is clearly the default dialer interface for Skype, this could represent a redesigned dialer for Microsoft's Phone functionality in Windows Phone 8. Microsoft has not yet demonstrated exactly how Skype will work in Windows Phone 8, but we're expecting the company to hold a separate launch event in late October that will reveal every main feature in detail.