Amazon just dropped word that the new Kindle DX will start shipping out on June 10th, a pleasant improvement on the perviously vague "summer" release date. The device is still available for pre-order, and shipments of the $489, 9.7-inch, PDF-capable ebook will be on a first-come, first-served basis.Filed under: HandheldsAmazon Kindle DX to start shipping on June 10th originally appeared on Engadget on Mon, 01 Jun 2009 12:07:00 EST. Pleas