Urgh, I accidentally deleted my post. Anyway, what I would do is create a very, very small scene. For the contents of this scene, create just a single button that takes up 100% of the space available in the scene. Label it "text to wife" or simply "wife." For the action, have it send the mms with the %FOTO to your wife and give a visual confirmation(i.e. use Alerts>Flash to display "success!" (Perhaps longpress action could do something useful as well, such as open mms app or hide the scene.)Then, using profiles, show this scene when you enter the camera app and hide it when you leave the camera app.
You should end up with something like this:

You can just use the little thumbnail in the corner(that, when touched, pops up a bigger version) showing the last picture taken, to verify the quality of the shot.
Hope that helps.