The 18-55mm does come with a hood and I believe the 18-200mm does as well. The 16mm lens does not come with a hood, but I've read that the lens hood for the 18-55mm lens will fit it and it can be bought from the Sony parts list site at Sony Parts and Accessories. I believe the part number is 415970302. The UWA and Fish-eye adapters for the 16mm have built-in lens hoods. As for the yet to be released lenses, I do not know if they come with lens hoods.
Overstock.com sell the 49mm petal hood Wathat looks and fits identically to the hoods that came with the 18-55mm lens Was under $10 delivered
