At the latest ANT 2012 Conference, in Niagara Falls (Ontario, Canada), Luigi De Russis presented a talk on a personal wrist watch for smart environments, proposing a reference architecture and showing a cost-effective prototype, based on open source and off-the-shelf products.
Read the paper on the PORTO open access repository or browse the presentation slides.
The presentation has also been featured on the Slideshare homepage on the 29th-30th of August: