Please find my test for Garmin FMI with GGS3.0. The plugin is still largely unstable.
Latest software was installed using Web updater.
* Messages were typed and successively sent from GGS3.0 to Nuvi 1490 without pause.
* Out of 20 messages that were sent from GGS3.0, only 7 messages were sent successfully to Nuvi 1490.
* Out of the many messages that are sent from Garmin Nuvi 1490, all messages are successfully sent to GGS3.0
* The canned messages work in the 7 messages that were successfully sent.
Already sent to firstname.lastname@example.org