As you no doubt know with the iPhone 4S best feature is the Sirivoice assistant, and since Siri surfaced with the release of theiPhone 4S there have been a few attempts to port the feature to other iOS devices along with several Siri like clones for Android and even Windows Phone. However there is now a new app called Evi that is available for non-Siri iOS devices and Android devices that could possibly be a real contender.
