Most everything can be found on the website:
Basically we support several languages:
perl, python, php, tcl
We support most of the 1-wire chips:
memmory, temperature, voltage, switches
(Actually Thermacron support is unfinished, as is DS1922, DS1923,
Java iButtons and SHA encryption is unsupported. All other 1-wire
slaves are supported).
We support serial, i2c, ethernet and USB adapters (as well as a separate backend: owserver).
We support multiple adapters and clients.
We have caching, simultaneous conversion, multithreading.
We have clients for the owserver that are light weight, platform independent,
for the shell, perl, python, Visual Basic, Java, ...
We have monitoring programs: owmon and owtap