Wont it be great to see what is the total time that users across the globe are spending on their GNU/Linux Desktops. What if every time a user signs in a system, their usage time is recorded and once in a while this usage data is uploaded in a server. We can then extract lots of data like how much time is being spent totally, which are most popular operating systems based used, based on average uptime, we can find out the type of users and their preferred operating systems.
For example, we can may be find that people who are using say 3-4 hours a day on GNU/Linux are mostly Ubuntu and people who are using say more than 12-14 hours a day are mostly on Debian or Mint giving an indication that new users choose Ubuntu but they slowly shift towards Debian or Mint. Again just a hypothetical example.
We can also plan to have a competition at GLUG level to see which GLUG is spending most of their time on GNU/Linux.