From: NokiaPowerUser

Time for Adduplex teasers and the first one is pretty important and validates what we identified in terms of Lumia 1020 sales trend. Lumia 1020 has in fact done better than Lumia 928 in terms of sales in its first 3 weeks of release. So, it is pretty much confirmed that Lumia 1020 is doing better than Lumia 920 at AT&T, as Lumia 928 was the 3rd top selling Verizon phone in its first month of release.

Second teaser shows dominance of Lumia 520 and seems it makes 25% of WP8 devices worldwide now.