Android and iPhone platforms have their own variant. A Microsoft rep recently relayed a message of peace to assuage fears, telling Ars Technica that the vast majority of app rejections won't cause a remote uninstall, and it'll only be used if the app "exhibits harmful behavior or unforeseen effects" -- not that we're entirely assured by the latter scenario, but wording aside, it does echo statements from the aforementioned companies that have so far been very conservative with its use (i.e. we can't recall a single instance of its use). "While we hope to avoid this scenario," he said, "we will make refunds available in such cases." Only time will tell just how trigger happy Microsoft gets, assuming they ever use it. Hey, just be happy we know about it -- remember the last time we were surprised to discover such a feature?