I can't quite believe that this is genuine, then again it does seem to be available in some online pet shops. It's the "Bow-Lingual Dog Translator." http://www.takara-usa.com/bowlingual.html
You attach this to your dog and when it barks, the thing analyses the bark to determine which of six emotions the dog is feeling, provides a relevant phrase and sends it your little display device.
Trouble is, I'd have thought that a dog would mostly say "I love you, I love you, I love you, I love you", whereas a cat - that could be a different kettle of fish - much more on the lines of "Where's my dinner, now f*!k off!" (apologies to ace comedian Lee Hurst)