Good for Starbucks for not kowtowing to the sensationalist threats of this paper tiger.
Lets show our support by sending them a note letting them know we approve of their decision, and will spend money there, and encourage others to do the same.
To whom it may concern,
I'm writing to let your know that I support your policy of allowing customers to visit your establishments who are also open carrying a firearm in accordance with local laws. I was made aware of the Brady Campaign's attempt to force you to bend to their will, and applaud your refusal to submit to their threats.
I hope that you continue to allow law abiding citizens to exercise their rights on your property, and for as long as you do, I will visit your establishments more frequently, and encourage others to do so too.
For more news on Open Carry in California, and some good videos, go here, and watch. Got that link from Adam, who's busting my chops. :)