Well all questions have be pre-posted and September 22nd will be the last Q&A for 70-298 exam.
I will continue to post the weekly Q&As for 70-640 and the last Q&A will be posted on Oct 17th. Remember that the exam review session are Oct. 20th and 27th and I will be leading those sessions.
Sometime this LONG weekend, I will start working on 70-649 exam and you may see some Q&A for that but it is unlikely, mostly because it is allot of work.
Remember to keep an eye on the forums for Q&A for other people or to post your own Q&A. http://owsug.ca/forums/default.aspx?GroupID=2