Some users on the PSN forums has reported that the last update bricks the 32GB memory cards.
After the update, the device won't start with the memory card inserted.
Well, I skip presentations because my english sucks...maybe I do it later.
I just read something in a site that may be handy for those who buy a PS4 and want to avoid headaches:
About Diego Vallejosone of us since 12:22 PM on 08.25.2013