I don't think Apple wanting to you buy the apps twice is the issue.
They have universal binary for a reason.
Highly doubt that it does. They want you to buy iPad specific apps.
That's fine, but there's a lot of good iPhone apps that don't have iPad versions.
Agree. Apple want devs to either make an universal version or create one specifically for iPad. Otherwise, iPad becomes just a large iPhone (not that there is anything wrong with that) since the scaled app won't be utilizing the extra real-estate of the iPad. It's a bit disappointing, but we might not have the awesome iPad apps if they simply allowed scaling.
One reason they don't want you to run retina apps is because they waste a lot of space. All the buttons and interface elements would be twice as large as they need to be.
This is a bit ridiculous. iPhone 4 apps should run full resolution on the iPad. There's no reason apps should look worse on one device than another one they can both run it at full res.
I wish more devs would make universal apps. Lots of them charge more for a seemingly "HD" version that runs on iPad.![]()