read at VentureBeat
"Walmart’s app is at least a little more interesting. Called “Walmart - BlowAKiss,” the app is targeted towards Valentine’s Day shoppers. While naturally you can browse and buy Valentine’s Day presents (or, as some might call it, junk), the app also allows you to send that special someone a specially decorated email — or as Walmart calls it, “blow them a kiss.”
The somewhat cute thing about it is that to send the message from your iPhone you actually blow into the device’s microphone. So technically, you are actually blowing them the kiss."