Normal Display on Monitor

By default, no. The mirror will just show what's on the headset (i.e. SBS and distorted).

To show a normal screen on the monitor would require a 3rd render pass, and may be difficult with targeting secondary screens in Unity. Probably the best way to do this now is to use a second PC networked, and just match a spectator camera to what the other computer is seeing. This will perform better, and leave you room to record a video if you want to as well.

Thanks for the answer, I liked your idea.

Talking about development, my idea is to send infos from camera axis x, y, z (from unity) to a txt.
And do a second version of the scene without rift to catch this axis from txt on a networked computer.

If someone have a better idea them mine I will be regardful to listen your idea too.

Thanks again =)

You wouldn't be sending a txt file, it would be a network packet (probably over UDP).

See here: http://docs.unity3d.com/Manual/net-StateSynchronization.html

Sorry, I saw now your answer, I done exactly this and worked perfectly =).
No Delays, its running beautiful

One Micro Send a TXT of my Oculus GameObject and another computer is reading this txt.

If someone need I can post the code

Great news!