Mac OS Lion and Sandboxing

I am developping a file manager app for Mac OS and I was wondering what can be the impact of the new s开发者_Python百科andboxing function of Mac OS.

Any experience?

Thanks

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The Matthieu's answer is obsolete. With Lion, you have to refer to Code Signing And Application Sandboxing Guide.

Also read this question: Howto "sandbox" my Lion application?

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Sandboxing your application is currently optional. You have to put code in your application to sandbox it by using the sandbox_init() function.

References:
http://techjournal.318.com/security/a-brief-introduction-to-mac-os-x-sandbox-technology/ http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/sandbox_init.3.html