Hmmm, I'm not being a dick, but I just want to give you an example - As to why word-processing is really difficult on an iPad. Assume you are a blogger, each platform like tumblr, blogger, etc. has its own Editor. And to make text bold, italic, listed, etc., you need to select the text, which is quite frustrating, if not hard on an iPad. Selecting text is easier with a mouse than say, with your fingers, especially on miniscule text.

Selection is just one example. Talk about dragging images within an editor - Most editors don't support the OnTouch event, but rather just the OnClick event, so there is a huge difference, actually.