Fixed one of 2.9 crashes in [2236]. We were using some constants defined on 4.1, but we still support 4.0

If you’re unsure in the future check the documentations, or run this:

ack -h -a '_AVAILABLE_STARTING\(.*, ?__IPHONE_4_[123]' /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/System/Library/Frameworks

After looking at those results, I haven’t found anything else we use unsupported in 4.0