In Windows 8, you were trapped in either the Modern UI or using the desktop, and going back and forth between the two worlds was $#@!bersome. Windows 10 takes a hybrid approach, allowing the user to choose between a classic desktop and a full-screen mobile experience. The feature, which has been developed under the name "Continuum," is now simply called "Tablet mode". In the build 9926 of Windows 10 Technical Preview, switching between the modes can finally be tried out. The leaked build 10036 shows that eventually you will also have the option to automate the process for dockable devices. Since Windows 10 is being positioned as the one OS for all of Microsoft's devices, being able to control the desktop and tablet experiences like this is critical to appeasing the consumer.

http://tech.slashdot.org/story/15/03...d-tablet-modes