Overall, the Mac App Store has emulated the iTunes App Store.
Apple certainly is allowed to thump its chest over the Mac App Store, but the far larger experiment will the Microsoft's Windows store. With the launch of Windows 8, Microsoft will feature a store for its so-called "Metro-style" apps. In a nutshell, apps that use the tile themes will be on the store. Also see:
- Microsoft to allow open source apps in Windows 8 Store
- Microsoft previews Windows 8 app store, launching with the beta in late February
- Microsoft can remove apps and data from Windows 8 devices
The beta for the Windows 8 app store launches in February. The only real wild-card for the Windows effort is whether Metro apps take off. Windows 7-like applications won't be included in the store.