<-------- Out there, we have BattleTag.. Nice and convenient..
However, there is no indication, wether you have an EU or US account.. Since EU players can't add US players (and vice versa), it'd be nice to have this info displayed.
The info is already available, due to Armory-import, so it should be relative easy to display for everyone (who have added BattleTag)..
Location is free-text, and might contain only a city (which you might not know) or even 'rubbish' like "Dark side of the moon", making it less than usefull..