geolocation for turism

I will need a simple www and Symbian app and www app for tourism industry. Next generation should have other mobile platform eg. IPhone, Android etc. Symbian App should find and refresh the mobile location and view it in Google maps. Symbian app should communicate with www app (log in, send location and ID, send and receive text messages and receive new locations). Symbian app should find new location (received from www app), view it in Google maps and get driving directions in Google Maps. Symbian app should search other logged mobile devices within eg. 10m and show them in Google Maps. All logged devices should be visible in Google Maps in www app. WWW app should send text messages, new locations to devices. More information will be available to candidates.