It appears that next week's Samsung Unpacked along with the unveiling of Nexus Prime and also Ice Cream Sandwich has been delayed. Speculators indicate that it is to respect Steve's Jobs' passing and its also possible that the funeral may be held on the very same day. Here's the quote from Samsung and Google:
Samsung and Google decide to postpone the new product announcement at CTIA Fall. We agree that it is just not the right time to announce a new product. New date and venue will be shortly announced.
It is sad to hear that but I can understand out of respect and I fully support Samsung and Google's decision to delay the event. We're expecting a new venue and also a new date for the unveiling of Nexus Prime & Ice Cream Sandwich. More updates as it comes in.