We'd like to preinstall the Linux client.
Web client is http://bookit.uwaterloo.ca - you must have a bookit account in order to use it (or the Linux client).
A Debian package (converted with "fakeroot alien ocal*.rpm") is available here - look for "ocal*.deb". You can install it with "dpkg -i".
Note: sometimes the client will appear to crap out. You start it up, authenticate, and it closes. The solution seems to be to remove the ~/.OracleCalendar directory and set up your connection again. Don't ask, we don't know.