Question

Obviously Apple just released the new iPad. As far as developers are concerned, what are the implications for adding new assets to support the retina and non-retina displays across iPad models? Is it the same as the @2x model implemented on the iPhone 4 and 4S?

If I have foo.png what name would I call its different size versions so it worked in a universal app across all iOS devices?

Answer 1

It would probably be solved by doing what you said, @2x but with a device modifier, since they have doubled the number of pixels. You will probably be writing myimage@2x~ipad.png.

Applications running in iOS 4 should now include two separate files
for each image resource. One file provides a standard-resolution
version of a given image, and the second provides a high-resolution
version of the same image. The naming conventions for each pair of
image files is as follows:

Standard: <ImageName><device_modifier>.<filename_extension>
High resolution: <ImageName>@2x<device_modifier>.<filename_extension>

The <ImageName> and <filename_extension> portions of each name
specify the usual name and extension for the file. The
<device_modifier> portion is optional and contains either the string
~ipad or ~iphone. You include one of these modifiers when you want to
specify different versions of an image for iPad and iPhone. The
inclusion of the @2x modifier for the high-resolution image is new and
lets the system know that the image is the high-resolution variant of
the standard image.

https://developer.apple.com/library/ios/#documentation/2DDrawing/Conceptual/DrawingPrintingiOS/SupportingHiResScreens/SupportingHiResScreens.html