Travel Guide for London (UK)
-download additional books (small fee)
-regular/free map & content updates
-detailed street maps (OSM)
-turn by turn routing
-point of interests + Wikipedia
-location aware search (GPS)
-supports 20+ languages
-no expensive roaming costs

MapDroyd features world-wide off-line maps powered by OpenStreetMap data. Experience true unplugged vector maps avoiding expensive network connections.

WordMate is an universal dictionary application.

http://wordmate.net