Well, I could sell it on my website and keep 100% of the sales? Modern operating systems seem to think any binary is malware these days. Windows ads a NTFS metadata tag to any file thats downloaded online and will throw up scary looking warnings when you try to run it. And the security folks spent years writing columns telling people not to download "random" binaries from the internet. So now we download "random" binaries from the App Store. Ofcource the app store has very little interest (beyond bad PR) in actually testing or ensuring that the application is not malicious, because who wants to hire tens of thousands of people for that when you can just use an "intelligent" algorithm to figure it out. They will pass the buck back to the vendor in a nanosecond when they discover malware in the app store. They're still going to keep the 30% of sales though. I'm not bitter, I promise! :)