Soundcover for smartphones. $14.95. Boggle!

‘Did you ever wish you could hide your location when talking on the phone? Ever wanted to give the impression you were somewhere else? SounderCover gives you the ability to add a background sound to any incoming or outgoing call, giving the impression that you really are in the environment where the background sound is normally heard. Pretend you’re at the dentist, in the park, on the street, caught in a thunderstorm, near heavy machinery or at a circus parade. The possibilities are endless! You can even use your own prerecorded sounds or sounds downloaded from the Internet.’