The SlideME (SAM) app is localized in many languages. Your device should have a system setting to change the language. Once you change the language on your device the SlideME app will also change to the desired language (providing the language is supported by the SlideME app).
You can also change the preferred language for displaying applications by opening the SlideME (SAM) app, press your device’s menu button, then tap on Preferences then Local. Tap on the option for “Target language” to set a preferred language for applications if the publisher has provided such a translation. Visit "Local" apps section to visit apps localized in your language.