Will the Mac App Store make the sky fall?
bonobolabs.com
bonobolabs.com
I do expect that there will be some short-term pain. iOS device owners are pretty well conditioned to expect low app prices from the App Store.
Eventually, though, users will adjust. The App Store will have the software they need. Desktop software isn't dominated by impulse buys the way phone apps are.
Ah, but perhaps that is true because there has been no desktop App Store. But now there is. Things may very well change.
The overall experience feels different from the others (MAC OS X & Windows) so much so that you almost forget the existence of any App Centre, at least initially.
In addition, many dual platform [Win/OSX] applications might take a 30% margin hit because of Apple's cut. Such companies face the prospect of either raising their price on all their products and thus loosing any cost advantage; forgoing the appstore altogether and missing a distribution channel; or providing different pricing depending on platform and potentially alienating Mac customers. Companies which have long supported the Mac such as Adobe and Nemetschek AG in particular face these issues.
So, it might be the right time for Apple to lower its own MAC OS X software such as the iWorks, from around $70 to $7. Only then may I personally consider buying it from Mac App Store.