Hey, I've tried running iphone apps on a mac, using the developer emulator apple provides. At first, I tried opening the files with the program, and that didn't work. Then, I tried moving the file to the folder where the other iphone apps are (the sample ones included with the sdk and that appear on the iphone emulator), and that didn't work. I noticed all the other files were .app , so I tried changing the .ipa to .app . When I tried that, it said "you do not have sufficient privileges to change this. I am an administrator. Does anyone know a workaround (possibly in terminal) to let me change the .ipa file to a .app file, or does anyone know another way to run an iphone app on the mac? Any help appreciated.