WebUpd8 reader Remi Rerolle has created a cool Unity Lens that allows searching and opening Tomboy notes from Dash.
To install Unity Tomboy Lens (only available for Ubuntu 11.10 Oneiric Ocelot), use the commands below:
sudo add-apt-repository ppa:remi.rerolle/unity-lens-tomboy
sudo apt-get update
sudo apt-get install unity-lens-tomboy
Then log out and log back in and the Unity Tomboy Lens icon should show up in Dash (it takes a few seconds though). You can then search for your Tomboy notes either by switcing to the new Tomboy Lens or by using the global Dash search.
Please note that by installing Unity Tomboy Lens, the Tomboy Indicator will automatically start (if not already started) when you open Dash.
For bugs or source code, see Unity Tomboy Lens at GitHub.
Thanks to Remi Rerolle for the tip!