Yes, you can do that using Script Expressions.
You have a guide which does something similar here: http://gpsgate.com/blogComment/taking_p ... _2_minutes
Instead of sending an SMS every 60 minutes, it sends a _TakePicture command every 2 minutes. But the essence is the same.
If you have follow up questions, please post the in the developer section of the forum:
forum.asp?FORUM_ID=7
Regards,
Johan
GpsGate Support