Actually replied on this a few minutes ago.
No, we haven't received the store update. It was postponed, count on us seeing it soon. Also, the 4.30 update was just a minor update to add support for viewing Vita trophies on your PS3, while moving the trophies under the Network section in the XMB. It also added a Singstar app to the game section on some users console, some people, like myself, didn't get the Singstar app yet.
I am wondering the new playstation store is out in US or not, because mine still looks the same as old. I have already updated to 4.3. Thanks!
We were supposed to get a new Playstation Store on October 23. But it was delayed. The October 19, Playstation Blog said:
"We’ve decided to postpone the October 23rd launch of the new store in the United States, Canada, Mexico, and Brazil. We want to be certain that you have an exceptional experience with the new store, so we appreciate your patience as we complete the final phases before launch. We’ll update you as soon as a new release date has been set."
Sony has not given a new release date for the new US Playstation Store yet.