I am wondering what limitations are imposed on the Mac app store. Can someone point me in the right direction? For instance, lets say I wanted to write an app that does incremental auto-backups of files on the Mac file system, is that possible with an app in the Mac app store, or would my only option be a standalone mac app?
On the iPhone, apps are self contained in their own “sandbox”? Does this same principal apply to mac app store apps?
I believe that starting in November, Mac App Store submissions must adopt the App Sandbox. There are specific entitlements that you can request when your app is submitted to the app store, along with an explanation of why you need those entitlements. More information can be found in WWDC Session 204 video on the Developer site.