How to create an iphone app on windows?

I own a pc with windows 7 on it.buying a mac is not an option.
so straight to the business.
I want to create an app which will very help me and a probably others in my situation!
i have experience with programming languages so learning objective c is not the issue.
so is there an software which I can create with it the app that is also compatible with WIN7?
if not Virtual Server is an option i can install the lions OSX on a VS and using the Xcode IDE, right?
assuming yes can any one refer me to some awesome guide or something?

any way the big question is how do I developing my app in WIN7?

For $99.95, you can buy a license for MobiOne Studio.
http://www.genuitec.com/mobile/
That has an emulator that lets you test your apps and comes with a 15-day free trial. It's also handy for those that want to test their mobile sites.