Project on hold. Try http://www.iterm2.com/ instead.
iTerm is an enhanced terminal emulator program for MacOS X written in Objective-C. It features VT100/ANSI/XTERM emulation, full i18n support, full-screen, multi-tab and other convenient GUI features. This project is indefinitely on hold, and we recommend that you try http://www.iterm2.com/ instead.
WidgetTerm is a terminal Dashboard Widget for Mac OS X 10.4 or above. This widget implements the terminal function through the Web Kit Plug-in in Objective-C powered by iTerm's open source terminal implementation.
tsMacClient is a front end for rdesktop and vnc written in Cocoa/ObjC for Mac OS X. This project is no longer being actively maintained. Checkout CoRD http://sourceforge.net/projects/cord/ as an alternative.
MultiTerm aims to become an extendible Terminal Emulation which provides a high quality (nice look and feel) user interface for everyday terminal work.
Unix users on OS X frequently have the problem of trying to copy text in a terminal window. TerminalAutoCopy is a SIMBL plugin that automatically copies text selected in a terminal window to the clipboard.