Steve Jobs originally unveiled Keynote, Apple's presentation software (now costs Â£79 in the iWork bundle with its page layout program Pages and spreadsheet Numbers) back in January 2003, after beta-testing it in secret in public for a year.
Flashes (medical symptom): Flashes are visual effects where a person sees sudden flashes of light. (For flashes of warm feelings see hot flashes.) Some of the effects are like flashing lights, an arc of light, or the feeling like a light-bulb has just flashed on and off in the periphery of vision.
Tail flashing is an important visual signal used by squirrels to indicate alarm. It is one of the first signals seen when squirrels discover the location of a disturbing stimulus. When the stimulus is more threatening, the tail flashing is accompanied by vocalizations.