A new jailbreak tweak called AssistantServer Installer allows jailbreakers to configure a Siri-like experience on a pre-iPhone 4S smart phone.
The tweak works alongside Spire to provide a SiriServer certificate, utilising Google API in order to create the voice recognition service. There’s no fee involved (besides the tweak’s $0.99 price-tag), and no icons are added to the Home screen. Instead, AssistantServer Installer adds a new pane in the Settings app, via which users can configure the jailbreak tweak.
Unfortunately, as mentioned the tweak works hand-in-hand with Spire, meaning your iPhone will need to be running a version of the iOS earlier than iOS 5.1.
Furthermore, in order to truly recreate the Siri experience using this tweak, numerous API keys (for Wolfram Alpha, etc.) also need to be inputted within the Settings app.
However, it’s not all bad. AssistantServer Installer will work with jailbreak Siri packages, and it does provide a basic Siri experience which doesn’t require much configuration.
For more information on AssistantServer Installer, take a look at iDownloadBlog’s video walkthrough. As mentioned, the tweak is available in the Cydia Store for $0.99.