Hello, I'm Florian, a french OpenStreetMap contributor. I see that wiki voyage will be soon launched, and it's definitely a maps oriented project.
I noticed that the geographical coordinates are displayed top right-hand corner but for very few articles (ex. New-Yorkhttp://en.wikivoyage.org/wiki/New_York_CityOK but Stuttgart http://fr.wikivoyage.org/wiki/Stuttgart no). On every page there is a link to the wikipedia article: [[Wikipedia:Stuttgart]] And as you probably know most of the wikipedia pages are already geolocated with their coordinate and also with their OpenStreetMap's object.
Suggested action: import wikipedia coordinates to wiki voyage. I think their is no maintenance problem because geographical places usually don't move ^^
Other topic: their no mini-map top right-hand corner next to the coordinates as on wikipedia.
Least but not last: their is a lot of pointed out places within the pages but none of them are geolocated ex.: *Tour Eiffel and its Parc du Champ de Mars, Les Invalides, Musée d'Orsay* This definitely lacks of precision ...
So I think their is a lot to do, I regret not to have the technical skills to do it :(
regards