this is a proposal for a new extension API to would allow invoking
extensions by entering text in the Omnibar.  In brief:

 [☆| gtalk dilbert                ]    // user enters "gtalk dilbert"
in the omni-bar and hits Enter

  // behind the scenes, ExtensionsService is queried for one that has
registered "gtalk" as its trigger keyword.
  // The extension is then sent the contents of Omnibox, which it uses
to do its thing, for example:

+---------------+    // extension opens Gmail, pops ups a chat with
Dilbert
|Gmail          |    // and focuses the textarea.
|   ..........  |
|   ..........  |
|       +-------+
|       |Dilbert|
|       |       |
|       |       |
|       |[#    ]|
+-------+-------+

  This would allow extensions to register interest in processing user
input from the Omnibox.  The basic premise is simple enough; I for one
love the Omnibar and off the top of my head I can think of half a
dozen different ways to put it to even heavier use through extensions
(see [1] for a couple more use cases), but I suspect it would be a
fairly major feature to consider adding.  I'm willing to dig down into
the code base and start implementing it but I'd really appreciate a
few pointers first.  Should this idea be pursued?  Does it have a
future in Chromium?

---
[1] http://groups.google.com/a/chromium.org/group/chromium-discuss/browse...
     More thoughts on this and a few use cases written in a case of a
severe sleep deprivation; caveat emptor.