Where do I set the application icon in an iphone app

Question

I wrote an app for iphone. All is working. I see it in an ipod. I have done all the testings and thanks to you guys I was able to resolve all my issues so far. Where do

Answer 1

This is what I have in my Info.plist for the icons of all supported devices (ipod, iphone, retina display, ipad):

The @2x files refer to retina display. The -72 refer to ipad.

EDIT:

This is the textual representation of the list above in my info.plist file:

Icon files

    Icon.png
    Icon@2x.png
    Icon-72.png
    Icon-Small-50.png
    Icon-Small.png
    Icon-Small@2x.png

XCode 4 EDIT;

As of Xcode 4, the best way to set the icons for your app is to access the Summary pane of your target settings, as displayed in the image below, and drag-drop the icons on the available controls (separately for iPhone and iPad, retina and non-retina).