The product now includes GSM triangulation and a 24 hour automatic SOS calling to its GPS-based panic button smartphone service.
Graham Thomas, a spokesperson for MySpot's master distributor Gofinder, said the SOS software application was aimed at a wide range of small to medium businesses that employ workers who frequently travelled away from the office alone, especially at night, and could find themselves in situations of duress.
"All personal location data is logged at a central server. Our system offers the most convenient and practical usage possible - a single click for sending out a pre-composed SOS message to one recipient or cascade to many recipients," he claimed.
"Notification is via e-mail, SMS, IM, twitter, and by automated voice calls.
"Google's Latitude is targetted at the social networking fun youth market, whereas MySpotSOS is a business tool aimed at organisations who have legitimate reasons to keep track of workers in the field."
MySpot is available from Gofinder in Australia at $299 including GST, pre-loaded phones are available from $599 including GST for any cellular network, with subscriptions from $299.40 per year, said Thomas.