Geopedia App app for iPhone and iPad
Geopedia is an informative travelling and research application, which connects Wikipedia with OpenStreetMap. It shows wikipedia articles (with geocoordinates) around any location on the globe. Currently there are around 100 wikipedia language editions supported, so you can use it with most of the languages out there.
This is especially useful, when your are travelling a country with no entries in your language. It easily allows you to switch to the local language edition to identify important spots. It also can be used to compare wikipedia entries between different editions.
All queries are sent in realtime to the the wikipedia databases - no proxies used.