Scott, here is the article that was cited in the talk about attention tonight:
http://www.plosone.org/article/info%3...

Melissa Hall, AKA Pearl Wilson, has been marked my Meetup.com as an Attack Spammer who has been Acount hacking the E-mails of the members of the Meetup groups she has been Joining. Be warned"

Did you see the NY Times article "Smart Dust? Not Quite, but We're Getting There"? (http://www.nytimes.com/2010/01/31/bus...) Highlight:

Mr. Smith is doing research that builds on RFID and adds an accelerometer and a programmable chip — measured in millimeters. Its power can come from either a radio-frequency reader, as in RFID, or the ambient radio power from television, FM radio and WiFi networks. (For the latter, Intel is developing "power-harvesting circuits".)