Do you really want to know if your other half is still sending saucy texts to their ex? Want to see if your mate at work is really having a go on the new girl in accounts? Well help is at hand. The aptly named Cell Phone Sim Card Spy allows you to read all texts (including deleted ones) that have been sent by any SIM card and will have text rats running for cover.

The concept is simple. All you have to do is place the offending SIM card into the USB reader and you will have access to the card's texting history. These can then be read on your computer. At that point you can put your feet up, relax, spit teeth and have a love in with the Green-eyed Monster at your leisure.

The gadget is produced by a New York based company Brickhouse Security. They make no bones about the target audience of the spy device asking potential customers: "Have you ever wished you can spy on your wife, husband, teens, or colleague phone to see what they are up to? Are they being suspicious when on their cell phone?"

Unfortunately there is still no device which can delete texts that you've accidentally sent to the wrong person (see below). Nobel prize for whoever invents that one.

Hilarious text song