Can anyone tell me if they're looking into this? The biggest problem is that it essentially renders Flex USELESS for iPad apps. I realize Adobe has dropped Flex, but this is a concern with the existing 4.6 SDK, and it would great to get a resolution to this problem before jumping to Apache Flex to find a solution. (Did you see what I said there, "resolution" to the problem) ;-)

iBrent

Alright, kevinkorngut's answer was the right one. It appears that even though AIR 3.x can render high resolution apps, it still returns the incorrect DPI for the new iPad. In a Flex Mobile project you have to override the DPI using the method mentioned above.

Here are the results I got:

Using the runtimeDPIProvider property on the TabViewApplication tag (works for any of the three project types) I created a class that extends RuntimeDPIProvider. To detect which iPad I was on, I used the following code:

override public function get runtimeDPI():Number

{

     var os:String = Capabilities.os;

     if(os.indexOf("iPad") != -1)

     {

          if(Capabilities.screenResolutionX > 2000 || Capabilities.screenResolutionY > 2000)

          {

               return DPIClassification.DPI_320;

          } else {

               return DPIClassification.DPI_160;

          }

     } else {

          return Capabilities.screenDPI;

     }

}

I'm returning a DPI of 320 as this gives the best result that matches the proportions of the device. In other words, even though the iPad DPI is 264, setting the app to 320 gives the correct size at the new Retina display.

In order for this to work, you must compile the app with the -platformsdk flag pointing to iOS 5.1 SDK, and currently that means you need a Mac running Lion with Xcode 4.3.1. Here's the adt command I used:

adt -package -target ipa-test -storetype pkcs12 -keystore ~/Desktop/iOS_DevCert.p12 -provisioning-profile ~/Desktop/iOS_DevProfile.mobileprovision newiPadTest.ipa newiPadTest-app.xml newiPadTest.swf -platformsdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platfor m/Developer/SDKs/iPhoneOS5.1.sdk

Also, the -app.xml descriptor file must have the <requestedDisplayResolution>high</requestedDisplayResolution> within the <iPhone> tags.

Thanks everyone for their replies!

iBrent