At least some promised Maps upgrades are reaching Japanese iOS users even though iOS 6.1.3 isn't available to the public, says Japanese site Macotakara. The improvements were originally slated to debut in v6.1.1, but were postponed when Apple had to deal with several major glitches. It's not clear how the v6.1.3 changes are propagating without new firmware, but at least some changes might be possible via updated map downloads.
