LOL...If you check DP for previous posts on pagerank you will see that there has been an update everyday for the last two years...
No one knows for sure... "Yesterday is history, tomorrow is a mystery but today is a gift, that's why its called the present" -- That wise turtle from Kungfu Panda
No one really knows for sure, but if you know someone from Google Inside you could ask him However, IMHO you should focus more on your websites ranking in the SERP's and then PR will simply follow
Like the above posters have mentioned, its not so important anymore. Just maybe gives you some bragging rights. However, Google has become a lot more random with their PR updates so no one knows. They seem to be coming more often now.
Mid September I'm going with. Maybe PR doesn't matter to some people, but maybe it does for others, so just answer the question.
Could be true, but am sure you're completely aware that PR keeps on updating all the time (INTERNALLY)...