Unfortunately, medical technology hasn’t yet made immortal androids of us all.  So it may be of some slight comfort to you to know that, even if you lose the use of your legs at some point, a darn cool wheelchair is in the works.
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There are, aside from the usual cruelty- and health-related concerns, a couple of problems with Tasers: namely that they have a limited range and are yet another piece of equipment for armed persons to carry.  But a new form of ammunition for shotguns may address both of those issues.

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Okay, folks.  Anybody remember the human-form Replicators from the “Stargate” shows?  Here’s a bit of news that may have you trying to construct some of the protagonists’ special anti-Replicator weapons: IBM would like to use DNA as a sort of framework for microchips.
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Night vision isn’t really a change-the-world technology; for people who aren’t soldiers (or criminals), it might, at best, help with sleepover games or home defense paranoia.  But when it works well, it has a sort of innate “cool factor,” and it looks like we’ve reached a point at which decent night vision gear is affordable.

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For the first few moments you think about it, having just about everyone flying around in small airplanes is a neat idea.  Then you’ve got to remember that lots of people would manage to crash.  And all of those airplanes would quickly kill the environment.  But NASA’s working on that last problem, at least.
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