??
I haven't found any iPad specific ones, just some old iPhone ones. I always liked iPhunny.
Wonder why we haven't seem many more ported to iPad. In fact, I think the pace of development of iPad apps is a little slower than I thought it would be. Maybe just do to the magnitude of the # of iPhones vs iPads. Also, since you have a full web browser, I guess no need to make as many site specific apps (ie. CNN, Foxnews, Facebook, etc)