Las Vegas casino operators are on the lookout for blackjack cheaters using a card-counting iPhone application designed to help players win. Nevada State gaming control officials have sent warnings to casinos about card-counting software that turns iPhone smart mobile telephones or iPod Touch MP3 players into illegal tools for beating the odds at blackjack tables.

"Once this programme is installed on the phone through the iTunes Website it can make counting cards easy," Nevada gaming control board member Randall Sayre wrote in a February 5 letter to casino operators.