title: How can i get a list of currently running threads in objective-C(iphone)
body: <p>Is there a way to get the list of currently running threads in objective-C?
  I'm mostly interested in getting the NSThreads objects, cause i want to replace the assertion handler for each running thread?</p>
  
  <p>If such thing is not possible, maybe i could set my own selector to be invoked after any thread is spawn(so that i could do the assertion handler replacement over there)?</p>