Geolocation requirements vary by application:
  1. a single approximate value when the page is loaded
  2. a current more accurate value when the user interacts
  3. a history of locations
  4. periodic update of current location at the server

1. and 2. are currently supported with the mobi:geolocation component. 3. can be implemented as a background task with a batch upload of the geolocation history. 4. deviates from the web model since the periodic update may be expected to occur even if the web browser is not active on the device.

However, some users may regard 4. as a privacy violation and be willing to provide location updates only when the web application is visible. This could be implemented with a periodic submit and the current mobi:geolocation component.

To provide continuous background updates would be a container feature and require investigation on each mobile platform.