I see this error
Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3.2 (8H7)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (fi
I just tried this after installing the latest 4.3 beta2 and apparently Apple now includes the symbols folders
CliffMac:DeviceSupport cliff$ cd 4.3.2\ \(8H8\)/Symbols/ CliffMac:Symbols cliff$ ls Developer System usr