You can’t fight success. Apple made the App Store famous on iOS and now that success is coming to MacOS. The MacOS App Store is a dedicated application and works essentially the same as what we’ve come to expect. The only real difference between the two app stores is that the MacOS App Store focuses on desktop software, rather than mobile.
The same standard interface is there, as well as application updates, even in-app purchases. The real benefit to consumers is that it puts an end to hunting the web for the best Mac software. There’s also searching, ratings, comments, categories and charts, all designed to make discovery as simple as possible.
The benefit to developers is pretty straight forward, putting your application in front of millions of eye balls can do wonderful things to sales figures and ultimately your bottom line. Apple take the now standard 30% for hosting, promotion and managing the financial transactions.
More @ Apple’s MacOS App Store