The phrasing "now is not the right time" in the statement from Google/Samsung usually refers to something happening (Jobs' death) that would negatively impact on the announcement. With all the press focusing on Jobs/Apple, announcing what Samsung hopes to be a true iPhone competitor and wanting to tout it as superior to the ip4S, it wouldn't make sense for them to announce the device at a conference where there will probably be other phone related announcements, and they will all be buried by the press by Apple/Jobs and IOS5 launch along with the 4S. My guess is the announcement will come the week of the 17th or 24th and then they'll be able to announce the device will ship the next week, just like Apple.