Skobbler has introduced a completely free, turn-by-turn navigation app for the iPhone, with one new and unusual detail: you help play the role of cartographer. Sort of like Linux for thoroughfares, you download the Skobbler app
and then use CloudMade
, a community-sourced mapping to add "hyperlocal" detail to the map, which Skrobbler then updates on its servers. The more information gets added by community mappers, the more detailed and up-to-date the instructions are available to the nav-app's users, with updates pushed to the program in real-time. We're unsure of how granular the details are in the current CloudMade maps, but the app is free and this could be your chance to be a pioneer.
[Source: Mac Daily News