Left my iPod nano on the flight to Perth. I'd not even left the airport car park (only realised when I had no music in the car I'd left it behind), raced back to airport, was told the cleaners had been through and not found anything (would you report it?) and never saw again. I knew the plane was returning to Auckland and asked for them to keep an eye out but meh... I blamed myself and bought a new one. Thank goodness it was easy to redownload the music from iTunes.
As above, more careful now also. Fingers crossed for you.