Re: [Orgmode] how to unschedule a task in agenda view?

[Manish]

On Thu, Jan 14, 2010 at 4:56 PM, Eric S Fraga wrote:
[...]
> Ideally, it would be nice if one could attach actions (beyond logbook
> recording) to todo state changes, actions like "unschedule this item
> when switching to WAITING state" and I'm sure there are others...  but
> having this capability is not critical of course.

There is a hook "org-after-todo-state-change-hook" that is called
after the state of a TODO item is changed.  So may be org-schedule can
be called to remove the SCHEDULED time on state change to WAITING?

http://orgmode.org/worg/org-configs/org-hooks.php#sec-1.13

Best,
-- 
Manish