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WWDC Keynote Presentation:
http://www.apple.com/quicktime/qtv/wwdc08/
iPhone 3G Hardware Specification:
http://www.apple.com/iphone/specs.html
iPhone 2.0 Software:
http://www.apple.com/iphone/softwareupdate/
iPhone Configuration Utility and Exchange ActiveSync Integration: http://www.apple.com/pr/library/2008/03/06iphone.html