One of Metro UI's most prominent feature, the live tiles, will be made available in a new, smaller size--ideal for apps that don't need a lot of space. Every live tile can be customizable depending on the user.
Microsoft promised that with this new integration, calling someone over the phone and calling someone over Skype will essentially "feel" the same and have the same user experience. Here, a call is occurring via Skype.
Not only will Windows Phone 8 devices have NFC capabilities, but a wallet feature will also be included. It can execute monetary transactions with one's own credit card, carry out in-app purchases, and hold coupon deals.
Because the new features in Windows Phone 8 is so hardware dependent, current devices, like this Nokia Lumia 900, will not be able to upgrade to WP8. Another version, Windows Phone 7.8, will let current Windows Phone device users get the new start screen, however.
Two Nokia Lumia 900s running Windows Phone are placed next to each other. The device on the right is running Windows Phone 7.8, which has a smaller live tile option, and its start screen occupies the whole screen.