***warning*** I love this app and use it all the time.. i use it to show the phone off to people... but I got a "chirp" from my brother-in-law while I was on another phone call, i replied to him once then closed the program and went back to the phone call screen..
After I hung up he called me and told me he heard my whole conversation.. one sided of course but heard everything I said.. not sure why and haven't played around with it yet to recreate it.. but that could be potentially hazardous if you decide to talk crap about someone or reveal personal info...
just a heads up