hai guys.... iam living india, banglore. today I went to nokia care with my lumia 820.... there they are saying that windows phone 8.1 update will come exactly on Friday ie. 6/june/2014..... I was wondering.. and they are saying... for all phones, they will release wp 8.1 update at a time.. unlike gdr2 and gdr3..... should I believe this? is it true?