The Māori language uses macrons above vowels to lengthen them; as part of New Zealand's bicultural foundations it is appropriate to insert macrons into maps, services etc. in order to correctly display names. Currently ArcGIS does not support macrons, so we request that this be changed in order to be able to make our map and data outputs culturally appropriate.
Request courtesy of Hurunui District Council and Kaikōura District Council, Canterbury, NZ
I have edited this to request support for other indigenous languages where possible, in light of my Australian friend's comment. Of course indigenous peoples worldwide should be represented by ESRI in their products :).