I want to config iTerm2 to be the default terminal on my mac (Mountain Lion 10.8.4), so when I do right click on the folder and choose "New Terminal Tab at Folder", it should open iTerm. Any ideas?
The New Terminal Tab at Folder service is provided by Terminal, so it can't be used with iTerm. You could make your own service for iTerm though:
As far as I know, there is no such a thing as a default terminal on OS X. You can change the default application for