Recent Facebook MAU statistics for Q1 2013 shows bigger growth in just two months  of Q1 2013 than seen in entire Q4 2012. About 965,000 MAU growth was seen from Q3 2012 to Q4 2012, while till February only the MAU growth  from Q4 2012 to Q1 2013 is about 1,217,000 which is around 26% more already. Extrapolating this may give us a growth figure of 1,825,000 for Q1 2013.

Now taking cue from our earlier calculations that till Q4 2013 about 21 million WP users were there, then this Q1 growth figure of 1,825,000 will be equivalent to about 9.77 million new WP users added in the Q1 2013. Just like, Q4 2012, Nokia can lay it claim to about 80% of these 9.77 million new users, which translates to about 8 million Lumia sales. So, Q1 2013 may be much stronger than Q4 2012 for Nokia in terms of Lumia numbers !!

Disclaimer: Again, this all may not be accurate and is based on statistical extrapolation of the Facebook MAU figures.

Thanks Tellus for the Tip. Cheers !!