By now, if you don't know what Twitter is, you must have been living under a rock. The micro-blogging site boasts members ranging from celebrities, to journalists, to everyday ordinary people who want to share their thoughts and updates with the online world.

Critics of Twitter see it simply as a way for people to overshare. Do people really care that you're eating a burrito, or that you had a bad day at work, or that your dog needs a bath? 

Well, now the ability to overshare has been taken to the next level, thanks to the WiFi Body Scale, a scale that automatically records your weight and stores it online. A new feature allows the scale to send your weight directly to the Twitterverse every time you step on the scale.

While this may be marketed as "peer motivation," it seems a bit extreme. Most people share their weight only with their doctor and their closest friends, if even that, so why would anyone want their weight made public to an infinite online audience?  Are the people who would use this scale genuinely looking for motivation to lose weight?  Or would it be the same people who tweet "Just had an amazing workout at the gym!" in an attempt to rub their fitness in their followers' faces?

On the flip side, I could see that the Twittering scale could serve as great motivation if used correctly. No one wants their weight gains to be made public, so it could act as one more reason for a person struggling with weight-loss to keep their diet on track -- and in a country with an increasing obesity epidemic, that might not be a bad thing. 

If you have $159 to spare and think that fear of embarrassment is a great motivator to put down that burrito you just tweeted about, this might be an ideal product for you. 

As for me, I'll be keeping my weight (and my $159) to myself.