But then why make iPads so insanely, ridiculously powerful?!
It's an interesting approach - turning an educational/prototyping environment into something that you can theoretically do real work with.
Not sure why we don't have Final Cut and Logic on the iPad though - it's certainly powerful enough.
The other, and maybe more likely, answer, though is consumer applications that could use it. On HN we tend to think about development tools when we think of "software that needs lots of power," but there's image, video and audio editing, real time effects processing, animation, all of that.