Originally Posted by mstone
a full featured OS
with a large monitor
in order to develop iOS apps
and HTML5 web code
No you don't. That said, iOS is full featured and nothing is stopping anyone from porting it to a larger screen. Which with the recent touch screen Mac rumours, is obviously what Apple is building up to.
I think to you this is more about traditional input devices and traditional views of an OS instead of OS capacity. iOS is OS X with a modern UI. At first Apple boiled the code down to the most basic functions and have been slowly rebuilding them into iOS with every new (and larger) device they make that runs it. This has been coming for a long time now, and I've seen articles from half a decade back wondering why Apple hasn't started doing some of these things (no folder hierarchy, automatic data organisation) in OS X already. I've been wondering the same thing.
I think in Job's mind OS X has already reached end of life, along with the classic idea of a desktop OS. He didn't invent the mouse, but he pioneered it and made it work when no one believed in it, and is now pioneering touch interfaces. Unlike other companies that perhaps started at the wrong end of the spectrum, he's actually making it work in the real world.
There are people that still use only a keyboard to interact with their computers and that's ok. There are people that still swear by command line and that is also okay. There will soon be people that swear by a mouse and an OS that uses a "desktop" and "folders" and that will be okay too. The rest of the world will have moved on to the next logical way to use their technology.