Since GA is based off of Urchin, I assume that they are using something close to it. Urchin works off of a server's access logs. Primarily, it tries to set a cookie that is then used for tracking. The standard practice is to modify the access logs to include that tracking token in the log entry. If no cookie can be set, then it approximates a session based on source IP, user-agent, referrer, time between requests, etc.
I would imagine that most people are being counted multiple times, thus inflating the number considerably.
Joomla! project leader Louis Landry and his colleagues want to protect the project they love. That's why, after two years of allowing proprietary plugins for the open source CMS, the group has decided to ask third-party developers for voluntary compliance with the terms of the GNU General Public License, under which Joomla! is licensed. Those developers are complaining that it's unfair for Joomla! to reverse its position after "a bunch of companies spent millions," according to one developer employed by a company that markets the proprietary extensions. Landry says he and the Joomla! team were wrong to have allowed the exceptions, and a return to compliance is essential in order to legally protect the open nature of Joomla!."
Link to Original Source
In his six-decade career with Zenith, Adler was a prolific inventor, earning more than 180 U.S. patents. He was best known for his 1956 Zenith Space Command remote control, which helped make TV a truly sedentary pastime.
In a May 2004 interview with The Associated Press, Adler recalled being among two dozen engineers at Zenith given the mission to find a new way for television viewers to change channels without getting out of their chairs or tripping over a cable.
Adler also was considered a pioneer in SAW technology, or surface acoustic waves, in color television sets and touch screens. The technology has also been used in cellular telephones.
The U.S. Patent and Trademark Office published his most recent patent application, for advances in touch screen technology, on Feb. 1."