The preponderance of digital photo frames has been a standard rant in this space, and for good reason. Not only are they overproduced and overmarketed in every iteration, from keychains to cubes, but they can also be found in practically every size imaginable.
Yet here's one that may prove to be a good idea despite its original pedestrian concept: a tiny digital magnet for the refrigerator door. Rather than having a virtually useless display all of 2.4 inches and 320 x 240 resolution, we've got a far more practical application. If you're trying to lose weight, you can post photos of your most unflattering depictions as a deterrant to the munches. Or, if you're an optimist, you can program a slide show to track your progress as you shrink down to a manageable size.
And if that doesn't keep you from ripping the door off its hinges, there's always the "Fridge Alert" as a second line of defense.