Where can i find examples of multi-threaded fibers?

[Gary Willoughby via Digitalmars-d-learn]

In the description for Fiber in std.thread is the following[1]:

"Please note that there is no requirement that a fiber be bound 
to one specific thread. Rather, fibers may be freely passed 
between threads so long as they are not currently executing."

How would this be accomplished and are there any code examples 
available to learn from? I'm assuming this would require a custom 
scheduler similar to the one in std.concurrency?[2]

[1]: http://dlang.org/phobos/core_thread.html#.Fiber
[2]: http://dlang.org/phobos/std_concurrency.html#.FiberScheduler