What is the method to create a mobile web site with a landing page prompting to add to home screen?

Not sure what you are asking for?

Sorry,
So that when a user arrives on a phone platform - Iphone, blackberry, droid, etc.
The browser asks you to click - add to home screen.
Then it adds an icon.
Then Your site runs outside the phone browser - so it looks like an app.

Ok, great.
So I am looking for a popup a modal overlay for mobile browsers that asks the user to bookmark the page.
Then I want to launch the page in a full screen (so the browser is hidden and it looks like I'm in an app.)

Someone has to have a cross browser solution?

>> Then I want to launch the page in a full screen (so the browser is hidden and it looks like I'm in an app.)

Nope.  The mobile browsers won't allow you to disable the nav like that. You need to make an app.

http://mobile.dudamobile.com
I found this to be an excellent tool for a mobile site

Site doesn't come up?

sorry http://www.dudamobile.com

I've requested that this question be deleted for the following reason:

No real solution.

The answer to the original question was http:#a37018700

You can't.

There was a suggestion for further research which should have been made as a new question.  

However, in the interest of happiness:

http://code.google.com/p/mobile-bookmark-bubble/

Forgot to Object to the closing.

Jason1178, thank you
http://code.google.com/p/mobile-bookmark-bubble/
Looks like an option.