Internode Nodemap is a network visualization tool. Using SNMP, it gathers a periodic snapshot of the current state of the network. Then, under instructions from its config file, it plots a series of "maps" of the network over the top of GIF images in the Web server's document root, using color and HTML CSS to indicate potential performance or reliability problems. The maps are hierarchical "drill-down" views of the network. The top-level map is a summary which can be clicked on to reveal specific details; these more specific maps can also have additional maps nested within.
LOAF (List Of All Friends) is an extension to email that lets you send out address book data without compromising your privacy. It appends a hash-like data structure to each outgoing email, and collects similar attachments from the people who write to you. These files can be queried to see if they contain a given email address, but they can't be reverse-engineered to reveal the list of addresses used to construct them. LOAF lets you check whether someone emailing you for the first time is a complete stranger, or appears in the address books of some of your trusted correspondents. And as a decentralized application, it offers an interesting alternative to current social networking sites like Orkut or Friendster.
qmptombox converts QuickMail Pro files to mbox files, ready for use by Mail.app or whatever your preferred mbox reading mail client is. It's a command line tool that churns out mboxes; just point it at your CE Software folder (usually in the OS9 system folder), and it will generate mboxes corresponding to the mailboxes in QMP. The default output is in Mail.app format.
Earth3D visualizes the earth in realtime in a 3D view. One can rotate and zoom the view and fly around. Additional data layers can be added to the view, e.g. country flags and names. It uses data from NASA, USGS, the CIA, and the city of Osnabrück. The data is loaded on demand over the Internet.
iTramp is a small personal accounting application. It presently supports multiple accounts, transaction types (cheque, CB, etc.), categories and sub-categories, transfer between accounts, a scheduler to save periodic transactions, basic search and statistics functions, and QIF import.
ZapM is a sci-fi rogue-like game that borrows monsters and ideas from all over and crams them into a ridiculous and perilous space maze where even a toaster can kill you. But the intrepid hero, a badass space marine (or perhaps you're playing as a skilled software engineer, or a plucky quarterback, or a mutant psion?), has no choice but to enter this dangerous hulk and search for the legendary "Bizarro Orgasmatron", the only artifact that can save the universe from certain destruction!