PSIsCrappyDevice

gistfile1.m

BOOL PSIsCrappyDevice(void) {
    static BOOL isCrappyDevice = YES;
    
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        BOOL isSimulator = NO;
        BOOL isIPad2 = (PSIsIpad() && [UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]);
        BOOL hasRetina = [[UIScreen mainScreen] scale] > 1.f;
        
        // enable animations on simulator
#if TARGET_IPHONE_SIMULATOR
        isSimulator = YES;
#endif
        if (isIPad2 || hasRetina || isSimulator) {
            isCrappyDevice = NO;
        }
    });
    
    return isCrappyDevice;
}

You could just explicitly start listing the crappy devices ... that way the logic isn't so complicated ... it might be long though ...

Pippen = YES;
Newton = YES;
eMac = YES;
iPod1G = YES;
iPhone3G = YES;
...
...
...

:)

This returns NO for an iPod Touch but not for an iPad 1.

Wrong, it returns NO for an iPad1 because it neither has retina nor has a camera.

True that. Took a look at my version of it. Anyway, why does it return NO for an iPod touch 4? They iPod touch isn't that good.

The latest iPod touch now has an A4 and retina, so it returns YES there.