I still think this is not a bad news. EB3-EB2 porting is happening at an expected rate. As long as it is using only little more than 233 visas, I do not expect yearly figures to be more than 4000-4500. This was well accounted. I do not expect predicted spillover for this year will be affected much by EB3-EB2 porting.
Check this out -->
http://www.micropoll.com/a/mpresult/1067045-399455 . Out of 60 odd votes, most of the people who are porting are with PD 2006 and beyond. Most of the folks with PD 2002 to 2005, who was/is qualified for porting has either already ported or in middle of porting. But number is a small number.
I am concerned that we will not see much movement for EB2-I for a year or two after FY 2011. I beleive most of the spillover after FY 2011 will be utilized by the folks with PD between 2006 and July 2007, who has initiated EB3- EB2 porting but could not file I-485 since their PD is not current. For coming year or two, EB3 to EB2 porting will be more than 6000 easily. It will be beneficial for folks whose PD is in 2006 and 2007 that EB2-I see maximum movement this fiscal year.
My $0.002 cents on this.