LAG is meant to be a replacement for GAIM. It will be built modularly in C/C++ and Python with front-ends for GTK, ncurses, Win32, Cocoa, and possibly more. It will support many chat protocols like AIM, Yahoo! Messenger, Jabber, and MSN.
The time it takes for an entered message in a chat room to be read by others. This time is usually measured in seconds; 10 seconds or less is normally acceptable. However, when the net is unstable, there can be several minutes of 'lag' between one person and another.