If we look back into the shrouded mists of time, we see that Moblin begat Meego begat Tizen.
Moblin was Linux with a cool OpenGL interface from Intel on which Intel spent most of their effort ripping out the parts they didn't need.
Meego was the effort to put those parts back and make something useful on more than just intel hardware.
Tizen is the attempt to convince you that this zombie project has life lift in it. It doesn't. It's dead. Stick a fork in it.