Here's what I've had to date
Arizmendi, San Rafael
Pumpkin bread. The best pumpkin tea bread I've ever had. Nicely spiced, it is moist, yet fluffy with good pumpkin flavor.
Bette's Oceanview, Berkeley
Pumpkin pie. Didn't like it. There was too much clove (or that type of cinnamon that tastes like clove). The butter crust was too tough.
Liled's Candy Kitchen, Vallejo
Pumpkin ice cream. Just swell with nice pumpkin flavor and spicing
Pumpkin pancakes. These were so good that I went to Bette's to compare pancakes (not pumpkin though). IHOP can hold its head high pancake-wise ... especially the pumpkn. Better syrup would be nice, but for the pumpkin pancakes they bring out heated original syrup instead of the dreck on the table.
Sonic, American Canyon
Pumpkin Shake. One of the best I've ever had, super thick with good pumpkin flavor and subdued spice. It wasn't too sweet. The nice touch was the sprinkling of pumpkin pie crumbs on the thick whipped cream.
Indian Wells Brewing Company Spicy pumpkin ale. I did what I rarely do with pumpkin beers ... bought another bottle and it might be the novelty beer for Thanksgiving dinner. Good spicing and some pumpkin flavors. Not so impressed with Blue Moon, or TJ's. Here's the 2011 pumpkin beer thread on the beer board. Someone liked HMB brewery's pumpkin beer.
Pumpkin latte, pumpkin scone - No. The latte was just sweet and discusting. The scone was dry and lacked flavor.
Harvest shake. Ick. They don't actually call it pumpkin. They call it a harvest shake. It is orange and icky.