Fresh on the heels of the much-anticipated Lumia 920 announcement, some new figures have come to light regarding its predecessors' success. According to the Finnish phone-maker, a total of 7-million Windows Phone / Lumia devices have shipped to date. The firm was also keen to point out that this number comes from 54 markets in total -- some 130 different operators. While this might seem modest, especially with only 600,000 of those sales being in the US, 4-million of those Lumia devices were sold in Q2, roughly double that of the preceding two quarters, so things are on the up. Now it just remains to see what impact any new Windows Phone 8 phones will have.