I eat with chopsticks when I can...it took some practice, but I think I've got it down pretty well. I still drop stuff every now and then, but when you're dealing with certain foods, it's bound to happen.
Interestingly enough, I think I heard that if you're a Westerner and you go to Japan, the Japanese will be impressed if you can eat with chopsticks (I think this was in a travel book I have, like one of the Eyewitness Travel books).
Also, I've seen training chopsticks before...we have an Asian store in my town, and besides the training chopsticks I've also seen little kids' chopsticks with Power Rangers and some anime girl on them. Kawaiiiii.....