A few weeks ago I was reading about an app that is similar to Seek Droid/Where's my droid. However this app could be activated by SMS and had the feature that you could ring your phone (without the ringer going off) and listen to what was happening on the other end. It would also send it's location (once activated) to two of your friends phones as well as the number of any new sim card that was swapped into it. The app could be hiden and even with a full reset it would still stay on the phone. In fact if the phone was rooted even a complete format couldn't get rid of it. Can anyone tell me what the app is? The closest I've come so far is WatchDroid Pro, but it doesn't seem to have all these features.