On the 30th October 2012, Lenovo announced a new range of convertible devices that is designed for Windows 8. They called it convertible devices instead of laptops/notebooks because those devices are more than just a simple laptop/notebook.
IdeaPad Yoga
The IdeaPad Yoga 13 and IdeaPad Yoga 11 allows the screen to be rotated though a 360° angle and switch between laptop and tablet mode. The hinge has been stressed test though a 25,000 times rotation.