Read this article about the possible future death of the American penny. Mostly, it's kind of an amusing read, especially the little stories about those who saved a million pennies.
Plus the amusement of the 'save the penny' crowd in the US. *shakes head* I think some worry about inflation w/out the penny but I don't really see that happening. I know some countries have gotten rid of the bottom value coins, and from my limited knowledge, it hasn't seemed to harm them at all. I know I sure hate getting pennies in my change. If it costs more than a cent to make a penny, why bother. Get rid of them, I say. :D
edit: Original link stopped working, changed it.