So, I got an 8320 today and I want to upgrade to the latest official Orange OS as I'm running an old version (4.2.2.184)....but this phone is only a temporary, as my Bold broke and as they aren't stocking anymore, I've got this one until they get them back. So, as I have to give it back sometime do you think it's a good idea to change the OS? Even if it's the official one off the Blackberry site?