With around 250k PS3s shipped between Russia and Poland PS3 should be comfortably past 300k sold in the entire region. I'd expect those two countries to make up around 2/3rds of the Eastern European market, and the difference between shipped and sold to be no more than 10% now, which would put my guestimate for PS3 at ~340k for the region.

That's a bit smaller than Benelux or Scandinavia where PS3 should be somewhere around 500k, but it's quite possible that Eastern Europe will be a bigger market for SCEE than either of those two in the future.

I wonder how Niko feels :P

Another update for PS3 in Poland. Numbers do not include gray import. 

May 2009
Sold: 100k
Shipped: over 110k

Links:
Units sold
Erreta with units shipped

Thanks for posting, looks like SCEP hit their targets with PS3.