Your application name is not truncated. The launcher that is installed on the mobile that displays your app decides of a reasonable length for a title to display. Each different launcher has different rules for that (based on the screen resolution, the user settings, etc.), so you're never fully in control.
- It's not big deal to display a partial title: the user knows what he's downloaded
- If you want to make sure everyone has a full name displayed, use a shorter name!