title: Reversing an ObservableCollection<objectType> using linq
body: <p>This one should be easy, and im ashamed i havent figured it out myself yet.
  I'm trying to reverse the order of a list of items in my wp7 app. The list is an ObservableCollection. 
  When using system.linq, intellisense lets me do this: myList.Reverse();  ,but this doesnt seem to work. Am i doing something wrong, or is there some other way i can do this easily?</p>
  
  <p>Thanks in advance.</p>