Miracle fruit?

I recently came across Miracle Berry Fruit Tablets at one of my favorite shopping sites, ThinkGeek. They are supposed to make bitter and sour foods taste sweet.

I'm sure we all remember experiments in elementary school science class where you map the different regions of the tongue to sensations of taste. So while the name "Miracle Berry" is a bit too hokey for me, the science behind it makes sense.

I'd love to give these tablets a try sometime, but at $1/dose, I think I can imagine the magical sweetness and put it to better pharmacological use, such as Zyrtec, which also costs a buck a day but when your allergies are out of control, it's priceless.