Record your latest caving adventures in real time: >From Costco.com for $119.99 (includes shipping & handling): http://www.costco.com/Browse/Product.aspx?Prodid=11221005&whse=BC&topnav=&browse=&lang=en-US
A more sophisticated way to accomplish the same thing is in the works, and it includes object recognition! Smart Goggles: <http://www.rdmag.com/ShowPR~PUBCODE~014~ACCT~1400000100~ISSUE~0803~RELTYPE~MIC~PRODCODE~0000000~PRODLETT~FH.html> Mark Minton