The latest one is for White Wolf's Trinity RPG. Clocking in at 28 pages, its a decent size for a quickstart.
From the blurb:
In the 22nd century, humanity has ventured to the stars. Yet amid the wonders of this new age, makind faces many dangers from without and within. Alien races, fractious colonies, contending governments, ruthless corporations and aberrant mutations all vie for supremacy.
This quickstart provides an introductory look at Trinity. It does not contain every aspect of the game, but it should give you a feel for the Trinity universe.