I'm typing this on my Macbook. Why? I don't think it's the peripheral problem. There are plenty of bluetooth keyboards out there that support my iPad. I prefer my Macbook (or my Windows 7 in a VM) because stuff is a lot more customizable and open on PC's then they currently are on mobile devices (at least in the Apple universe). For example, just try to run an extension on Chrome for iOS. Heck, try to view the source of a page on an iPad. It can be done, but is complicated. I'm not sure how much this affects your average user, but lack of extensions, lack of real multitasking, and a bunch of other little things still makes me prefer my laptop for many things.