so i have my blackberry storm 9530, all of you know that storm don't have a threaded SMS. so it sucks. i dont like it at all, im planning to UPGRADE it to OS5 because upgrading to OS 5 will make my SMS be Threaded, i reseach the advantage and disadvantages of OS 5, i have red some that OS5 problems that they cant access their Facebook App? is it true? im thinking. please Help me. would it be better if i upgrade to OS5?

thanks in advance.