[emhs]

As some have mentioned, this is essentially spamming the markets with shallow copies of your apps, which is typically verboten by major app stores. What's really necessary to truly take advantage of this concept without being spammy is a better form of keyword association for apps, allowing you to associate a gift app with "birthday", "holiday", "diwali", "christmas", "hannukah", and all the other holidays and occasions I can't think of at the moment. Of course this would need some sort of check to prevent people from spamming keywords you're not really relevant to (maybe a means of downvoting one of the keywords that brought you to the app on the app's page?), but assuming you can enforce a degree of responsible usage, this would allow app makers to build out the semantic associations of what their app can provide to people. Google in particular ought to be interested in something like this, as it would allow them to further build out their sematic trees, and associate holiday gift apps with specific holiday keywords more easily, enhancing their search results and ensuring they stay ahead in the app-market game.

[lsiebert]

Let the app creator create initial tags. Have system tags like spam or malware, that cause the app to be reviewed. Let users add and vote up or down tags, perhaps prompting them when they update (so they will have used the app. Downvoted tags are removed. Upvoted tags are placed higher in a search for that. let users searching specify tag only, or app name and description, or both.