We've experienced these in a few hotels lately and thought that they were really smart design improvements. It seemed a little like it taking us two thousand years to think of adding wheels to our luggage.
You know the feeling of being in your shower and having the nylon liner sticking to your arm while you're trying to wash your hair? Most of our bathrooms are so small, that giving yourself a little extra room in the tub can make a real comfort difference...
We've not seen these in a home yet, but we went around and put this list together of good resources:
&bull: Curved shower rod $58
&bull: Contour Curved Shower Rod $30
&bull: Curved Shower Curtain Rod $40
&bull: Whole bunch from NexTag
&bull: 5' Curved Shower Rod $40