This shouldn't be a controversial statement at all, and should be a matter of fact to everyone in the know, but the gold standard for portable OS devices, namely tablets and smartphones, is the iOS. The Apple line consistently comes out with products that work well right out of the box. Typing on any 3g or newer iPhone, and any iPad, is a total pleasure, unlike my old touch phone that I wanted to throw against the wall every time I texted someone. One more day on my old phone and I might have developed carpal tunnels from punching the screen to get a keystroke to register. So anyways, what I'm trying to say is that the iPhone and iPad are what all other things are compared to. I feel the ASUS Transformer Prime does real well in this regard and definitely ranks well above the iPad. And one of my favorite things is that the software requires almost no tinkering to have a great experience, unlike my phone for instance (samsung galaxy s3), which while it's really a nice piece of hardware, I'm definitely going to have to root it as it definitely needs a lot of streamlining for me to finally be comfortable with it.