This wonderful application lets you change information on SMS Conversation, Call History or fake your GPS Location to let your friends believe that you are at somewhere else. Or for example one day you are sitting with your friend and you said him that his girl friend just say to love you. Of course he does not believe and you give her SMS message as a prove.
Your friend does not know that you fake her SMS messages with FakeMyi cydia tweak 5 minuntes ago.
After installing then launch FakeMyi icon from SpringBoard. It will show current GPS, current SMS Conversation and Call History. You can click each data to modify or can add new record.