I am from Northern California (Santa Rosa, CA to be more specific) and there are no such problems here, yet. However, like I said in a previous post, if we have a large percentage of ARM holders, we might see this phenomenon too. This is why my husband and I will never take out ARM's, particularly on our primary residence.
I don't think we will have too much to worry about. For example, Marin County, just to my south only has 20% of it's total available land available for development. Approx 80% is set aside as open space and owned by various state, county and federal entities so that kind of pressure on the supply and demand of homes up here will buffer us from some of this foreclosure bust.
That's not a good sign. It's spring, things should be moving fairly fast, not sitting around for long. At least that's how it is in these parts, The seasons may be at different times in CA compared to ND.