No one here is being specific. Just incredibly vague. It does "stuff" better. Other devices can't do the same "things" as the iPad.
Like what? Apps? Applications? You think Apple invented software or something?
The iPad-dedicated apps are amazing on the iPad. For instance, I've been just as efficient on my iPad writing emails as I am on a desktop/laptop. The photos app is amazing, and is seamless. I love surfing YouTube videos on the iPad. I love just holding it and using the internet. The iPad wasn't made to be "better" or "do more" than laptops or desktops. Watch the keynote - the iPad is an in-between device. If you don't see the need for one then don't buy one.
Listen to me: Try using the iPad. There is no point debating you on what the iPad can or cannot do when you haven't used it. I can say, "The browser is awesome!" or "iPad-specific apps are great!" but you'll still bitch and moan about how stupid of a product it is.
This is because you are a troll. You aren't ever going to believe that the iPad is a good product, so quit wasting our time. Please.