Resolving as a duplicate of request 2127.

IThe Kronolith side-by-side view is not very useful unfortunately.
I assume you have seen the egroupware planner view
http://www.egroupware.org/uploads/screenshots/calendar3.jpg
this is exactly what we are looking for.
I think
http://bugs.horde.org/ticket/?id=2127
is asking for a similar view and it is also related to planning.

Thinking about it, have you looked at the "side-by-side" view (you can 
turn it on in your calendar preferences)? It doesn't do exactly what 
you want, but it's somewhat similar. Depending on your reaction, also 
note that I've never really liked the side by side stuff, especially 
its implementation, so having a single "Gantt" view with an adjustable 
granularity might be a nicer way to implement all of that. Kind of 
sounds like the independent free/busy view, also... maybe we can merge 
this in to request 2127?

With the way Kronolith works the axis would be calendars, not users, 
but sounds useful to me.

Have request from users for a calendar view similar to egroupware 
where users are on the vertical axis and time on the horisontal axis, 
looks like a GANT chart.
This would be a good layout for a planning view.