When (not) to abuse NSUserDefaults

Question

I wonder what the guidelines are for:
1 - how often I can read from NSUserDefaults
2 - how much data I can reasonably store in NSUserDefaults

Obviously, ther

Answer 1

Hundreds to thousands of items are fine in NSUserDefaults (it's basically just a wrapper around property list serialization). With respect to the overhead for your application, the best thing to do is try it and use a profiler.