PHUDDY [FUD-ee] or Personal Heads Up Display Buddy is a factory-standard translation application integrated within every XT. As with all XT Technology, PHUDDY is triggered automatically when non-Cradian races require a less subtle indication for emotion.
When engaged, PHUDDY tracks, records, interprets, and listens to the tone, mood, or emotion of the present conversation.
It then attempts to convey its wearer's emotions to all other parties. What the parties see depends on their own personal race; PHUDDY morphs itself across an array of simultaneous glass walls at alternate frequencies picked up categorically by certain non-Cradian races within the Universe. What PHUDDY does not have categorized it either will attempt to translate, or simply turn off.
When PHUDDY was first released, it was criticised for its low-resolution and general upbeatedness. However, its complex facial reimagining algorithm inputs so much data, a higher resolution tracking system couldn't possibly integrate with an XT correctly. Not in its current model, anyway.