This the source codes for the book "Beginning iPhone 4 Development Exploring the iOS SDK", whose authors are Dave Mark, Jack Nutting, Jeff LaMarche. I believe you will have no regret after you download the source codes.

Begin_iPhone4_Projects_2011_01_21
.................................\02 - Hello World
.................................\................\Classes
.................................\................\.......\Hello_WorldAppDelegate.h
__MACOSX
........\Begin_iPhone4_Projects_2011_01_21
........\.................................\02 - Hello World
........\.................................\................\Classes
........\.................................\................\.......\._Hello_WorldAppDelegate.h
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\Hello_WorldAppDelegate.m
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\._Hello_WorldAppDelegate.m
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\Hello_WorldViewController.h
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\._Hello_WorldViewController.h
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\Hello_WorldViewController.m
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Classes\._Hello_WorldViewController.m
........\.................................\................\._Classes
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj
.................................\................\........\Hello_WorldViewController.xib
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj
........\.................................\................\........\._Hello_WorldViewController.xib
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj\InfoPlist.strings
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj\._InfoPlist.strings
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj\MainWindow.xib
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\en.lproj\._MainWindow.xib
........\.................................\................\._en.lproj
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj
.................................\................\.....................\davemark.pbxuser
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj
........\.................................\................\.....................\._davemark.pbxuser
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\project.pbxproj
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\._project.pbxproj
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\project.xcworkspace
.................................\................\.....................\...................\contents.xcworkspacedata
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\project.xcworkspace
........\.................................\................\.....................\...................\._contents.xcworkspacedata
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\project.xcworkspace\xcuserdata
.................................\................\.....................\...................\..........\davemark.xcuserdatad
.................................\................\.....................\...................\..........\....................\WorkspaceState.xcuserstate
__MACOSX\Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\project.xcworkspace\xcuserdata
........\.................................\................\.....................\...................\..........\davemark.xcuserdatad
........\.................................\................\.....................\...................\..........\....................\._WorkspaceState.xcuserstate
........\.................................\................\.....................\...................\..........\._davemark.xcuserdatad
........\.................................\................\.....................\...................\._xcuserdata
........\.................................\................\.....................\._project.xcworkspace
Begin_iPhone4_Projects_2011_01_21\02 - Hello World\Hello World.xcodeproj\xcuserdata
.................................\..............

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