The origins of modern viruses are not entirely clear, and there may not be a single mechanism of origin that can account for all viruses. As viruses do not fossilise well, molecular techniques have been the most useful means of hypothesising how they arose. Research in microfossil identification and molecular biology may yet discern fossil evidence dating to the Archean or Proterozoic eons. Two main hypotheses currently exist
Didn't Microsoft put Vista on there website for BETA testers? I think you could download it and use the Key for a year or something. But it has ended now, so nevermind.
Yes, Sony took over BlueRay for there console, Playstation 3. I think it is quite useful having 50 - 60 GB disk to hold the PS3 games, but I don't like to look of the price. But we'll have to wait and see what Sony do about it.