I just got my wife a BB 8520 with data. I have set up the google maps app so that we can keep track of each other location (I have a BB 8900).
I have been "monitoring" her all day from work through my computer and it has been somewhat accurate (I understand that her BB doesn't have GPS built in).
I wish there was (if there is I would like to know) a way for Google Maps to alert me when my wife arrives at certain places. (home, work, etc).
Also; I would like to set the intervals that Google Maps updates its location (every 1, 5, 15 minutes or so).
I don't know any way to do what you want using Google, even with a fully-functioning internal GPS. Verizon makes "Chaperone" software for their devices that allows position tracking and alerting.
ahahahah.. i don't believe you.... i think in case of emergency or something your wife is enough adult and smart to resolve herself... etc.
tell the true, you want to spy your wife... eheh