tekgoblin writes "A very important and functional feature has been added to Apple’s iOS 5 for Japanese users. If you remember, Japan had suffered a major earthquake and also has one of the most advanced Earthquake detection systems known to exist. Time magazine had nothing but high regards for their warning system." Link to Original Source
If it happens once, it's a bug. If it happens twice, it's a feature.
If it happens more than twice, it's a design philosophy.