i have a Mac with Mac OS X Snow Leopard, can i add iOS 5.1 to it?
With the new resolution for iPad 3, how we will do with images, because if the app will run in iPhone 3GS, 4 and iPad 3 i think we should have 3 images with different name like @3x.png or .. thank you.
@WrightCS's answer handles the part about the images perfectly well.
However, you can get the simulator and SDK to run on Snow Leopard.
Open up the package and copy
/Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk
to
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk
Copy
/Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/5.1
to
/Developer/Platforms/iPhoneOS.platform/DeviceSupport/5.1 (9B176
Copy
/Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk
to
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk
Adapted from here.
Edit: Get your iPad Retina on by copying
/Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone Simulator.app
to
/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone Simulator.app`