As yet nobody has done an application to do this - however having said that, the process is relatively easy.

There is enough documentation floating around to implement the idea, maybe starting with the anti-theft and I am here threads.

Essentially (I hope I've got this right):

* Build a d-bus listener to intercept incoming text messages.
* Decode incoming text messages and filter through your hit list.
* Stop the UI from alerting you about the incoming message if a hit is made.
* Either delete the message entirely from the sqlite database or move it elsewhere for viewing in an external application.