Hi, I want to read/write to cache.plist

If I want to read an existing premade plist file stored in the resources folder I can go:

path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathWithComponent@"cache.plist"];
NSMutableDictionary *root = ...

But then I wish to read it from the iPhone.

Can't, the Resources folder is only readable.

So I need to use:

NSDocumentDirectory, NSUserDomain,YES

So how can I have my plist file preinstalled to the Document Directory location?

Thus meaning I don't have to mess around with untidy code copying the plist file over at startup. (Unless that's the only way).