Apple has recently released Macbook Pro's with Retina displays.
I have tested my Flash application on the new laptop, and this is what I observe:
My Flex SDK Flash application looks blurry and strange when I try to check it out from any Macbook Pro with Retina display, while looking sharp and OK from all other machines.
On this screenshot you can sort of see the issue:
(Expand the image to the actual size, and compare the Flex SDK components with browser labels. Browser labels look crisp, Flex SDK components look a little bit blurry.)
Please fix this issue.