Amazon has declared its plan for an Android app store long back. However, it seems that Google does not want any app store to be available (for download from Android Market) to Android users other than its own Android Market. This is the very reason why, it pulled another app store: the Kongregate Arcade, even though it catered only to flash games.
A lot of development and planning goes on behind the making of an app store and Google pulling off app stores proves fatal for developers who work on this. If this is true, next in the line of fire is the Amazon Android app store. This store would act as a marketplace where apps could be bought and sold by interested parties. Amazon has already urged developers to submit their apps and if Google pulls the Amazon app store app too, it has to be installed separately.
Though, the Android market had already laid the trap when its terms says,
You may not use the Market to distribute or make available any Product whose primary purpose is to facilitate the distribution of Products outside of the Market.
The alternate route app stores can take is to make themselves available pre-installed on devices like the Samsung devices do. Another approach can be simply providing another portal for apps like Getjar does. Either way, they are missing the advantage of a wider reach through the Android Market.
(Image Via: Android Community)