Same here...ordered 4 Jun and the dealer says it has yet to be picked up! Maybe GM is spending their time in the press rather than production floor because I keep seeing numerous ads on TV and articles in magazines. I think I even remember seeing a golf or tennis event that was sponsored by the Enclave.
Just test drove a cocoa metallic CXL, FWD, Ent. Pkg. #2, chrome wheels, sun roof/skylight, cashmere leather, MSRP 39,000, located in Nashville, TN. Beautiful car. Saleman said that he couldn't special order one without it going against their dealer inventory. He said he didn't expect to get any more till late August.