Welcome to the Tech News Countdown, hosted by Alison Haislip. Every Saturday, Alison will take you through the top tech stories of the week.
This week Alison looks at the latest from NASA's Mars lander, a flying taxi idea, a initial look at Windows 7, Bushnell's answer to PC game piracy, and wireless allergies.
Give it a watch and tell us what you think in the comments section. You can also cast your opinion in the Tech News Countdown forum.
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