Unity Launcher support on Ubuntu

First, I symlinked my Sublime Text 2 executable to /bin folder:

$ sudo ln -s [SUBLIME_TEXT_FOLDER]/sublime_text /bin/sublime_text

Then, I created a file named sublime_text.desktop at ~/.local/share/applications with the following content:

[Desktop Entry]

Name=Sublime Text 2

Comment=Sophisticated text editor for code, html and prose. 

Exec=sublime_text

Terminal=false

Type=Application

Icon=/opt/Sublime Text 2/Icon/48x48/sublime_text.png

StartupNotify=true

Like I said, this isn't perfect. If you open it two times on the same session, it will duplicate the icon. If you remove the duplicates, you remove them all. Sometimes it won't show on alt+tab. But, still, if you log in and keep it open, this will do the work.