The irony is that the piece of hardware designed to showcase Win8, the Surface Pro, is a fine piece of machinery whose sales, at least in my personal case, are being hurt by the OS it’s trying to flog. A Surface Pro running iOS, now, that’d be cool, especially with the Microsoft logo on the bottom of the screen...of course, that would probably cause a black hole and suck the earth into it...
As a developer I avoid iOS because of the up-front cost of entry into the market. There are a lot of very robust development tools for Windows and Android that are free.