online-accounts does not allow a way to disable a particular application

Thanks Jamie for your report. This is indeed a very important feature and I'm sure it will be address in later versions.

The "all or nothing" approach was chosen to keep the design (and implementation) simpler for this first iteration.

Agreed, that's an important feature to have to be feature equivalent with GNOME Online Account.

Status changed to 'Confirmed' because the bug affects multiple users.

Removing the tag and quantal tasks as PS won't be able to fix it this cycle

I would take the liberty to +1 this for a similar scenario:
Not only is granularity in the integrated applications per account impossible, as Jamie reports, but also the other way round: It's impossible to restrict the permission set for a single account. For example, adding a Google account includes access to Gmail, GDocs, Google+, Youtube, Picasa.
What if I want to restrict where my Google account data gets used? For using google talk with Empathy, I had to authorize a Google account because the Jabber account I used for previously without problem refuses to connect in 12.10 (like https://bugs.launchpad.net/ubuntu/+source/empathy/+bug/1069531/comments/15). I have no interest though in other parts of my google account being integrated in Ubuntu (e.g. Youtube). I'm not the only one with this gripe (https://bugs.launchpad.net/ubuntu/+source/empathy/+bug/1069531/comments/16).

I think this fits in this bug report. If not tell me, and I'll submit a separate one.

Requesting for a FFe.

This fix adds enable/disable toggles next to each application line in the account editing page. This allows user to enable/disable specific applications using a certain online account.
The importance of this feature has been highlighted in the previous comments and in the duplicated bug reports.

This feature has been ready for some time already, but somehow we forgot to upload it to Raring.
We have been testing this feature for a few weeks now, without discovering regressions.

Since Quantal, we got also these changes (all of which are bugfixes which didn't alter the functionality):

=================
gnome-control-center-signon (0.1.3-0ubuntu1) UNRELEASED; urgency=low

  [ Didier Roche ]
  * Automatic snapshot from revision 124 (bootstrap)
  * modernize build to confirm to other packages we have

  [ Rico Tzschichholz ]
  * Fix dev-package dependencies

 -- Didier Roche <email address hidden> Thu, 13 Dec 2012 18:34:12 +0100

gnome-control-center-signon (0.1.2bzr12.12.05-0ubuntu1) raring; urgency=low

  [ Robert Bruce Park ]
  * Inlined packaging data.
  * -debian/patches/fix_exec_path.patch

  [ Ken VanDine ]
  * New upstream snapshot
    - Add LXDE to control-center panel desktop file (LP: #1070546)

 -- Ken VanDine <email address hidden> Wed, 05 Dec 2012 10:48:53 -0500

gnome-control-center-signon (0.1.1-0ubuntu1) raring; urgency=low

  * New upstream release.
    - Containers for account toggle switch and list header are rendered
      poorly in themes other than Ambiance / Radiance (LP: #1040186)
    - Control center panel should be optional (LP: #1070729)
    - List corners are square for "Add account" rounded otherwise (LP: #1043714)
    - Grey box around "Show accounts that integrate..." is noise (LP: #1043729)
    - Remove account button should be title case (LP: #1059376)
  * -debian/patches/revert_string_change.patch
  * debian/patches/fix_exec_path.patch
    - fixed path in dbus service file
  * debian/control, debian/rules
    - added autoreconf

 -- Ken VanDine <email address hidden> Tue, 13 Nov 2012 15:36:09 -0500

gnome-control-center-signon (0.0.20-0ubuntu1) raring; urgency=low

  * New upstream release.
    - Fix the passing of cookies to signon-ui (LP: #1066917)
  * debian/control
    - removed unneeded build depends for libdbus-glib-1-dev
    - build depend on libsignon-glib-dev >= 1.7 to get fix for (LP: #1066917)

 -- Ken VanDine <email address hidden> Thu, 08 Nov 2012 12:43:17 -0500

=================

OK, I agree that this is a fix we want in. I'm trust that your testing is sufficient. Please go aheaad.

This bug was fixed in the package gnome-control-center-signon - 0.1.3bzr13.02.20-0ubuntu1

---------------
gnome-control-center-signon (0.1.3bzr13.02.20-0ubuntu1) raring; urgency=low

  [ Didier Roche ]
  * modernize build to confirm to other packages we have

  [ Ken VanDine ]
  * Automatic snapshot from revision 135 (bootstrap)
  * Add switches for toogling enabled state of application
    services (LP: #1044055)
  * Fix D-Bus service file substitution (LP: #1066917)
  * Allow the preferences panel to be built as a standalone
    application (LP: #1078642)
  * Read provider settings from .provider XML files
  * Enable tests during package build
  * Test improvements for libaccount-plugin
 -- Ken VanDine <email address hidden> Mon, 18 Mar 2013 11:35:16 -0400