Delta SkyMiles members who register and check-in for their flight using the Delta app can earn 1,000 miles through Sept. 7, 2011. SkyMiles members can use the app to check-in and request an eBoarding Pass instead of printing out a paper boarding pass. The eBoarding Pass can be used at 35 participating airports, including select international airports. Visit http://insideflyerus.wpengine.com/link/?4979 to learn more and register.