some observations:
- 3 D printers are not a topic any mores, BUT the applications of 3D printing are: artificial limbs / hands ..
- cool technology from HP that can embed a barcode into an image and you can't see it.. the tools though can.
- MANY one off's: control your door / light with a smart phone
- several "spark" (https://www.spark.io/) like startups
=====most important from my perspective:======
some Chinese vendors with actual products using 6LoWPAN ( a protocol pushed by Next, Samsung, BigAssFan ..)
good intro: http://www.cepro.com/article/led_by_nest_thread_for_home_automation_is_most_promising_iot_standard_yet
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Karl