Excerpt from another Amazon Appstore perspective
Curation is a tricky subject, but a good opportunity. There has to be a big and profitable middle ground between the obsessiveness of Apple’s control of the iTune App Store and Google’s just about anything goes approach tro the Android Market. Google’s lack of curation has led to a vast number of apps ranging from dubious to malicious. If Amazon can walk the narrow path between vetting apps for quality while avoiding heavy-handedness, it should have a winner.
Finally, Amazon could perform a big service by sorting out apps by compatibility. The Google world is plagued by a variety of versions of its operating system, not all of them compatible. While the core compatibility issues seem to be improving as the older 1.5 and 1.6 versions of Android slowly disappear, there will always be a gap between Android phones and larger tablets. It appears that Amazon plans to address this, though the feature doesn’t seem to quite be working yet.