Separate view ?
 

I wonder how i can make a pop up window with my top/front/side views and just put it on my second monitor so when i'm modeling in prespective can watch the second monitor and model comfortable in other view also ?
It will be a lot of time saving...

its an easy thing to do:

go to the dropdown menu Panels in your viewport and you see

Tear Off...
Tear Off Copy...

but beware: in a teared off viewport window all your marking menus wont work.