public bool InfoplistSignerKeyPairExists ()
{
	//	The Info.plist file has to be modified so the resulting cracked .ipa can be installed on the iDevice. 
	//	For that the key-pair {SignerIdentity, Apple iPhone OS Application Signing} is added to it. In that process the 
	//	Info.plist is converted from binary to plaintext XML and the key-pair is added. So there are many options to 
	//	check the Info.plist:
	//		a) The size of Info.plist: mostly done using NSFileSize
	//		b) The date it was created or changed
	//		c) If Info.plist is plaintext XML:
	//		d) For the keypair key-pair {SignerIdentity, Apple iPhone OS Application Signing}
	
	var basedir = Path.Combine (Environment.GetFolderPath (System.Environment.SpecialFolder.Personal), "..");
	string appName = "ApplicationName.app";	
	
	string xmlFile =  (basedir + "/" + appName + "/info.plist");
	TextReader tr = new StreamReader(xmlFile);
	string filecontents = tr.ReadToEnd ();
	
	if (filecontents.IndexOf ("SignerIdentity") >= 0)
		{
			if (filecontents.IndexOf ("Apple iPhone OS Application Signing") >=0 )
			{
				return true;
			}
			else
			{
				return false;
			}
		}
	else
	{
		return false;	
	}
}