What appears in the beginning credits around the title and the actors' names is HTML code, with some alterations. Much of the HTML is taken from the Internet Movie Database's homepage.
One of the commands Milo enters when accessing the surveillance system in the daycare center is "show -p 1984," which is a reference to George Orwell's book "1984."
The overhead shot of the NURV 'campus' is actually Simon Fraser University, located in Burnaby, BC
IP addresses assigned to Winston's satellites are part of the non-routable (to the Internet) 10.x.y.z Class A subnet, indicating a private network.
Most desktops seen in the movie appear to be running the GNOME desktop on some sort of GNU/Linux or Unix installation.