(I'm not a lawyer. The proceeding is how I understand the law in California to the best of my knowledge, and is not necessarily accurate.)
In California, CCW permits are issued by the County Sheriff (and I believe, some city police departments have the power too). They must follow the state guidelines; and they also have the discretion to impose their own rules as well (for instance, my Sheriff doesn't allow rimfire guns). The County Sheriff also has the authority to pull any permit for any reason - or no reason at all.
There are - amazingly - a lot of County Sheriff's in Ca who believe in the right to self-protection; particularly here in northern Ca. Scott Brown, the Sacramento County Sheriff, is among them. Sacramento is the capitol city of nearly 500,000 (1.4M in the county). I know several Sac county residents with CCW's. I live in a neighboring county that is particularly conservative - with an excellent Sheriff.
Ironically, in a way, California law is more lax than Texas. If you live in a county of less than 200K residents, and you are in that county at the time, and hold a CCW, you may open carry. Now that's the law as I understand it. In practice, I seriously doubt there is any open carrying going on here in Ca. That's just the wording of the law (which I have read for myself). I understand that Texas is not an open carry state (but is far less restrictive overall, of course).