Thats great that you think of it that way.
I don't see a reason for apple to run them at "200%" when they obviously could have just let the apps run at full resolution without a problem. Why do we have to deal with pixelated iphone apps, when they can run full with just a small tweet. I understand that some developers are turning their applications into universal ones, but just as many AREN'T. Beejive is a great example. They are going to charge iPad users 9.99 for the iPad version, when I already paid 9.99 for the iPhone version. Apple gets a cut from those profits, so don't be naive enough to think they didn't think of this exact situation. As it is now, I'm not going to buy the iPad version of Beejive, when I can just run my iPhone version with the correct keyboards and the right resolution. Thats 3 bucks that apple loses.
While some of the functions of the apps may not work right, such as photo loading. That may have something to do with the difference in coding for the iPhone and the iPad, I get that. But the iPad should still run the apps at the proper resolution and with the proper keyboards (not just a zoomed in version of the iPhone keyboard). If the App Itself needs to be recoded, thats fine, but they should all run correctly. Because honestly most of the apps that are zoomed in, are useless on the iPad because of the resolution or keyboard problems.
And all you did with the last sentence of your post is make an jerk out of yourself.