The SBD has been changed to include 2 4oz servings of milk per day on phase one. I'm signed up at their website and that's what is listed. As far as how much milk is in a latte you should ask Starbucks, you can get the nutritional info at the store, and probably somewhere on line if you Google it.
I'll did up the milk thing from the SBD website and post it.
Here's the phase one dairy scoop.
(2 cups allowed daily, including low-fat or nonfat plain yogurt)
Low-fat milk (fat-free and 1%)
Fat-free 1/2 & 1/2 (less than 2 tablespoons)
Low-fat plain, vanilla, or sucralose-containing soy milk (4 grams of fat or less per 8 ounce serving). Be sure the product does not contain high fructose corn syrup
1% or fat-free buttermilk
Low-fat or nonfat plain yogurt