1. Windows Phone People hub

2. Windows Phone contact cards

3. Android’s Wi-Fi, GPS, and Bluetooth toggle buttons

4. Windows Phone and Sony Xperia Z power-saving modes

5. Windows Phone’s clean look

6. Android’s multi-tasking

7. Windows Phone smart tiles

8. Windows Phone’s interactive homepage

9. Android’s quick sharing

10. Android Widgets

11. Windows Phone and Android Notifications

Your ideas