For those of us who can't afford to keep lawyers around, we'll just need to read and comply with these licenses the best we can and hope it's sufficient to keep us out of court. Users can create their own private calendar, allow others to read it and perhaps a select few to maintain it. Calendars can be created for conference rooms, for scheduling, etc. It is very well-done and doesn't require anything extraordinary. The calendar will even e-mail you a reminder if you need one.
Gun buffs out there can have a good time with tkballistic .
This application will also calculate ballistic coefficient and maximum point blank range. It requires Python and tkinter. Working on networks, I find there's always a need to convert between decimal, hexadecimal, octal and binary. This little utility does it extremely well. The four text boxes are placed one below the other.