Peel, devein and butterfly the shrimp. Leave the tails on. Remove the pits from the dates and quarter or cut the dates in eights, depending on the size of the shrimp. Stuff a slice of the date inside the shrimp. Cut the pancetta in half length wise and wrap a slice around the body of the shrimp. Heat the olive oil over medium high heat. Sautee the shrimp for about 2 minutes per side, or until the pancetta is crisp and the shrimp are cooked through.