I predict that the increase in perceived risks to Mac customers will give Apple the excuse it needs to increase its control over the Mac software ecosystem, by moving ISVs to the Mac App Store. It is no accident that the theme of the upcoming Lion desktop operating system is ?Back to the Mac?: taking concepts that Apple employed successfully with the mobile version of OS X (iOS) and back-porting them to the desktop OS. One of those features is the introduction of the Mac App Store, an Apple-controlled storefront for selling and distributing applications. As with the iPhone/iPad App Store, Apple screens and signs all apps sold through the Mac App Store. This provides buyers some assurance that their apps are from known points of origin and that they don?t contain malware, such as the Mac Defender Trojan horse. I predict that once the two 500 pound gorilla ISVs ? Microsoft and Adobe ? distribute apps through the Mac App Store, Apple will announce that this will be the only mainstream way to install applications on Macs.