@Bertie: Yes, France is the country I was specifically thinking about. I see a lot of similarities with code signing and selling DRM'd music that has been a hot topic in Europe.

As others have mentioned, I think this will oppress users and suppress the innovation of new applications that haven't been conceived yet.

I think this is extortion. Some developers may be unable or unwilling to pay $99 or 30% to distribute applications. Even if signed, there is no technical reason that an application must be distributed by Apple (others are already deveoping and distributing applications now). They too are a software development company and this gives them an unfair advantage over others... it's clearly a conflict of interest.

I like the idea of code signing so I can identify the source of an application but not so it can be used against me and force my usage of an application. Consumers should not be forced to delegate the responsibilities of informed consent to a third-party.

I like the idea of a repository for downloading applications but not one that creates a monopoly and restricts my choice to obtain software elsewhere.