If you’re having trouble with symbolicatecrash not finding symbols for system frameworks on 3.0 devices, look in /Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0. There should be a symlink in there called ‘Symbols’, pointing to ../../Developer/SDKs/iPhoneOS3.0.sdk. If there isn’t create it like so:
> sudo ln -s ../../Developer/SDKs/iPhoneOS3.0.sdk Symbols
Now when you re-run symbolicatecrash it will correctly find all the system framework symbols, and should give you a fully symbolicated report.