Please note, it is NOT 4 million Lumia sales, it is 4 million Lumia SHIPPED.

Source: http://www.results.nokia.com/results...lts2012Q2e.pdf

On the first page,
Commenting on the Q2 results, Stephen Elop, Nokia CEO, said:

"We shipped four million Lumia Smartphones in Q2,and ..."

Units shipped does not mean units sold so Elop is being very cagey. Units shipped include unsold units, returned units, freebie units like those given to all AT&T employees, bloggers, ball carriers, reviewers and developers.

For U.S. sales Elop is being even more cagey. He says 600,000 units of all devices shipped for N. America. This include dumb phones, Symbian phones, returned units, freebies and covers Canada and Mexico.

If the figures are good why so cagey? My generous estimate is 300,000 Lumia shipped in U.S. and after deducting return units (Lumia 900 has a super-high rate of return with many buyers exchanging their phones 2-3 times) a pathetic figure of only 150,000 Lumia in users' hands.