SMS activated GPS tracking software?

[petermg]

Trackme has the ability to respond via email or SMS to a predetermined address if someone sends an SMS to your phone with a predetermined string. However.. the memory footprint of Trackme is rather large.. or not small. Does anyone know of any GPS software that all it does is be an autoresponder with your tracking info or google maps link when someone sends you an SMS (txt message) with a certain phrase or code? I have been traveling far for certain jobs I've been on and my wife is worrying about me making it home, some of the roads are kinda bad. I am wanting to install software on my phone that will automatically reply to her with my location without it taking up a lot of RAM. I did a search here, but did not find the software I was looking for. I did look in the GPS thread as well. Any help would be appreciated. Thanks.