Siri has been a big hit for Apple, but as we all know, it runs only on an iPhone 4S. I've been expecting some Siri knock-offs to appear, and now one has that can be used on any iPhone and even the iPad if you don't mind not seeing it full screen. The app is called Evi by True Knowledge. It's US$0.99 and runs on any iDevice with iOS 4.0 or greater. "Run" is a bit of a misnomer. Evi's speech recognition is powered by Nuance, just like Siri, and the recognition part is first rate. But that's where the good news ends. Evi has not successfully responded to a single spoken query I've made since yesterday afternoon. Generally the app sits there for awhile, then re
