I submitted my application under Pilot Masters Graduate stream on November 1st, 2010. got call from them on 10 days later and they asked for few more supporting documents. I sbmitted the given documents on November 19th, 2010 and I got my ONP approval on December 21st, 2010.
Applied to Federal Government on April 1st, 2011 (Buffalo Office) and still waiting.
I think there is an exact topic like you've just created: Canada Immigration Forum > Immigration Topics > Provincial Nomination Program Immigration > Topic: Timeline for PNP applications at Buffalo Office submitted April 2011
Also, you've created 2 topics which serve same purpose...
This can be relevant once you change the Topic Name to "Timeline - OPPNP - Masters/PhD Stream" or anything specific you like. If it's another one that will carry on with the processing time of Buffalo, then I, personally, have to see 3 different topics to seek same info. Besides, I believe, Ontario doesn't have any privilege over other provinces once the application reaches Buffalo. I may be wrong; but it won't make sense if you open a topic just for Ontario-PNP Timeline(Buffalo) for Immigration. :-X