I remember my friend having a text message app for his G1 that allowed him to "prank" text people. What I mean is, it allowed him to text people, but not see exactly who or where the text is coming from. He was able to put in another number/name from which the text was coming from. Does anyone have any idea what I'm talking about? If so, whats the name of the app, and is there one for the Blackberry?