Betrayal is a pretty common affair on the Internet. Many a household has lost its members to the charms of instant messaging, photo swapping, Internet dating, live cam action and so on... it's too long a list to quote here, really.
But, technology cuts both ways, and devices like this one we found on a Spanish site - the Wintec Easy Showily (sic) - advertised as the "GPS Infidelity Locator" combines the power of Google Maps with all the paranoia of an insecure geek.
It's a simple device that keeps a log of the GPS co-ordinates polled at intervals. It plugs into the USB port of a PC and uploads everything to Google Maps. If you're (un)lucky enough you might even catch your spouse and their lover on Streetview.
We'd question the effectiveness of said devices, though. The fact is that hiding something like a GPS device inside a vehicle, purse or other container is pretty silly as it's bound to get blocked by cover or interference.
Another thought crosses our mind. These are cheap and easy to use, sure, but when your spouse takes you to divorce court, you might want to slap yourself silly and ask why you bought it in the first place. Let's face it, there is a little matter of invasion of privacy and sooner or later it'll blow up in your face.
Why not invest $150 in taking him or her out for dinner and a movie instead, and maybe there'll be something left over for the weekend?