Very good overall Ability to look up Wikipedia even without Internet connection (and connection costs .. and delays) is often invaluable. The application is very good overall  although there is still some room for improvement: Search function is a bit strict regarding to case and diacritics: You get much more warships with 'HMS ..' and 'USS ..' than with 'hms ..' and 'uss ..'  and if you are not used to diacritics you can look up Rohanese 'Lord of the Rings' heroes only indirectly ..
April 18 2016