Cool new tech I've learned of in the last week

I am slightly surprised at the number of interesting new things I've come across recently in a field I am increasingly disenchanted with, but I have stumbled across some interesting new (to me) stuff of late.

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The Raspberry Pi is old news, but I just discovered that there is a port of Plan 9 for it:
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=80&t=24480

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