It's maddening because I don't want an iPad. An iPad doesn't fit my requirements, one of which is side loading. It can't share data between apps easily either. Android has intents, which are nice, but I would absolutely love a tablet that could switch to full blown OSX, has a USB port for mouse and keyboard. A true laptop and tablet combined.
That would be a device I might be interested in. An iPad is not a device I am interested in. So you might understand why "but iPad!" comments are annoying to me.
Too big? Too bad - that's a laptop. Not enough battery life? Too bad - that's a laptop.
They're a bit pricy but I've gotten the chance to see the pre-housing crisis models (the company/management group was insolvent for a time) were very solid. The Wacom digitizer is really good for artists too. if they came out with an Air version I think they'd have a rather hot product..
Thus I really like the ideas behind Surface, though Windows isn't ideal for working with unix, which I need for my job.
(I love my Cintiq, but I'd love it more on a retina MBP screen.)