quardCRT is a terminal emulation software that supports multiple terminal protocols, can be used across platforms without dependencies, and has a completely consistent user experience on windows/linux/mac. It supports multiple tabs and history management.
KHexTerm is a simple serial port terminal, useful for testing of peripheral still using RS-232 interfaces.
KHexTerm provides a easy to use GUI written in C++ using Qt 4.x and supports hex and textinput/output modes.