I think such a shell-script wrapper around an emacs-client or emacs
batch Org-mode instance sounds like a very nice idea -- and not overly
difficult to implement.

Here is a quick approach to implementing the org agenda example you
suggested below [1] notice that the script is structured to dispatch on
the first command, currently only "agenda" is implemented but it
shouldn't be difficult to add others.

Also, rather than a single org script like the one attached which
dispatches based on its first argument, we could go the git path i.e.,
we can have org-agenda and org-add in the same way that git has git-log
and git-push.

Best -- Eric

Torsten Wagner <torsten.wagner@gmail.com> writes:

> Hi Marcelo,
>
>> A CLI client would be nice, but IMHO, I don't think it would be faster
>> than the operating org from emacs; perhaps for a couple of basic
>> stuff, but I think that depends strongly on personal tastes.
>
> For me the most nicest part to have a CLI interface to org-mode would
> be the fact that I could use all the command line magic instantaneous.
> E.g.,
>
> git log -n1 | org add "Remember to check the last commit"
>
> could end up in
>
> * Remember to check the last commit
>
> commit b9de5f08ba0833d2b1912d02335667e8e6cc17b
> Author: User Foo <foo@bar.com>
> Date:   Mon Dec 20 14:50:05 2010 -1000
>
> This comment might fixes the bug Totti was dealing with
>
>
> or a simple
>
> ls | org add "The files I have not processed so fare"
>
> could end up in
>
> * "The files I have not processed so fare"
>
> file1
> file2
> file6
> file11
>
> and a
>
> org agenda next | xargs awesome-client notifyme("{}")
>
> could create a pop up in my window manager (awesome wm) informing me
> about the next appointment in my agenda.
>
> Even more into hardware details,
> a udev-rule could be used to send a certain command to org-mode
> whenever a specific USB-stick is inserted in the computer.
> People who like to clock there work might love this feature.
>
> There are actually hundreds of possible nice combinations...
>
>
> All the best
>
> Totti
>
>
>
>
>> Marcelo.
>>
>> On Thu, Feb 3, 2011 at 7:14 PM, Torsten Wagner<torsten.wagner@gmail.com>  wrote:
>>> Hi,
>>>
>>> maybe someone should contact the devs there and invite them (to come to this
>>> email list and/or vice versa).
>>> There is really some beauty in the idea to use dead simple command line
>>> tools to getting things fast and quickly done. On the other hand org-mode
>>> has so many useful functions.
>>> It would be a very nice integration for both sides to settle down on a way
>>> to import/export data from each other seamlessly.
>>> I work often with a shell and this would allow people to use the command
>>> line whenever they just need to do to something quickly and switching to
>>> emacs and org-mode if they need editor capabilities.
>>>
>>> Greetings
>>>
>>> Totti
>>>
>>> _______________________________________________
>>> Emacs-orgmode mailing list
>>> Please use `Reply All' to send replies to the list.
>>> Emacs-orgmode@gnu.org
>>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>>
>
>
> _______________________________________________
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> Please use `Reply All' to send replies to the list.
> Emacs-orgmode@gnu.org
> http://lists.gnu.org/mailman/listinfo/emacs-orgmode

Footnotes: 
[1]  org script