Still loving modRana
Feature request as you begin on the next version, location sharing especially for N900.
suggesting the following services
Mitaru - http://miataru.com/ OSS has sailfish, droid, html5, and ios ports
location2sms https://gitorious.org/location2sms OSS N9 port
Icecondor https://github.com/icecondor/api/wiki/api-v2 OSS

moving dots or pins for friends would be great as well as popup when a friend, especially a selected one, was nearby inside a defined distance.