Whilst using Xcode 4.0 and trying to debug and see what value is held in what variable - or see what objects are in an array etc, I always seem to get \"Summary Unavailable
Start your app up in debug
IN XCODE 4.02, go to Product/Debug/Shared Libraries
The window that appears tells you which dynamicLibs are loaded
Scroll down until you see "libXcodeDebuggerSupport.dylib Click the "Load" button, and then "Done"
After stopping on a breakpoint, the contents of a string should be printed in blue after the object's address.
Hope this helps!