Since the app already hit the market, we can see that it piled more than one thousand downloads, and only a 3 and half average rating. In other words, this app is nowhere near the most wanted feature on the iPhone 4S.
Unfortunately, Siri for Android is a shortcut to Google`s built-in Voice Control. It even has the same icon as that of iPhone 4S Siri. In simpler terms, it is infringing on Apple`s rights. Google should really lay rules for the apps on its market.
Whether Apple is going to take a legal action or not is yet to be seen.