Traditional T9 Keypad IME is a free Android app developed by Lee Massi that offers a T9 predictive text input method using your hardware keypad. It is designed for devices with a hardware keypad and is not compatible with on-screen keyboards. The input is available only via the numeric keypad. This app supports multiple languages, including English, Russian, German, and French.

Although this app is no longer maintained, you may wish to try out sspanak's fork for continued support. The app's website offers help and support through an issue tracker.

Overall, Traditional T9 Keypad IME is a useful app for those who prefer a hardware keypad and need predictive text input. However, due to its lack of maintenance, there may be compatibility issues with newer devices and operating systems.