I have heard that once or twice, but I have read many articles that say the exact opposite. Most say you should only use to around 25% and then recharge fully. I have only had my new mini since March but I think it is awesome I usually only have to charge around one a week because of the new battery life.
"Gee, Quinn... I hope that little foray of yours into Geekland just now is the result of heat exhaustion, and not an unpleasant side effect of all that tutoring. I mean, you're not turning into a brain, are you?" -- Sandi