yet another PalmOS serial browser, primarily for GPS receivers. he consists of several distinct applications (like ZboxZ), so he is rather slow, but flexible. nauta can be used as a serial logger for multiple simultaneous channels.
Dzcomm is an RS-232 API for as many OS / platforms as we can achieve. Originally designed to work on DOS alongside the allegro games programming library it can now work work alongside it as well as independently of it and works on some unixes as well.