But what needs to be smart about it with only city accuracy? Azketu's updater will be fine.... It will only detect cell tower changes. And only update on change. And won't suck battery (cell tower location detection takes no extra battery, even though the GPS icon is lit up)

As an alternative, you can take mine just posted to the Latitude thread, but change it back to use cell towers (it's a single line change) and be done with it.

/Z