(Formerly MacPopUp.) From the QuickPopup home page: "QuickPopup is a program that allows Mac users to exchange instant messages with other users on any local area network (LAN). With QuickPopup, you can send and receive messages from different operating systems such as Mac OS, Windows 95/98, Windows NT, Windows for Workgroups, Linux and other UNIX OSes. QuickPopup is compatible with the Microsoft WinPopup application and the similar clients in other operating systems." (Note: While QuickPopup is a TCP/IP-based application, it is geared for use on local area networks (LANs), not via the Internet.)
While no information is available regarding what's new in version 4.5 (other than the fact that the Mac OS X version is available as a Universal Binary that runs natively on Intel- and PowerPC-based Macs), version 4.1 added/changed the following:
Currently, no user reviews have been submitted. Send me yours!
Can't find what you're looking for? Try a search:
Also, if you have an older Mac, be sure to check out the "Classic" applications page for more options.
Finally, take a look at ALEMIA if you think you know that name of an application, but aren't quite sure.
These are applications that are newer and of potential interest, but which I haven't yet selected for permanent inclusion. Have a look, and let me know if you think they deserve to be part of the permanent collection!