At first I was all excited about the shared Photo Streams feature but it isn't working exactly how I hoped. I started sharing some photos using shared Photo Streams and uploaded them from iPhoto on my Mac. I thought to myself this is great, a way to share my photos without it costing me anything. But then I noticed when I share these streams they are automatically stored on my iPhone 5 also. Is there anyway to keep the shared streams from automatically being stored on IOS devices when you upload them from a Mac? I only have 16GB on my iPhone and if it starts copying these streams it is going to eat up my memory really quick.