The best thing I read this week was this piece by Craig Hockenberry. I'm going to butcher together a quote here which I think sums it up perfectly.
It’s likely that getting your iOS app to run on a Mac will just be a matter of flipping a switch in Xcode. It will be exciting for a lot of developers, including yours truly, to press that button. But it’s also important to temper this enthusiasm with reality: that build setting is just the first step on a long and complicated road. Good interaction doesn’t come for free.
I don't necessarily agree 100% with is his thoughts on Universal apps, but everything else here is solid gold.
Of course this isn't directly related to the App Store but there's definitely lots of cross over with what's being talked about here, and mobile games. This bill (and forgive me if I get anything wrong here, I know nothing about US law) is a long way from being approved, but if it is passed would probably end up being a net win for the App Store too. I believe that the popular business models in mobile games are bad for everyone in the long run.