I would say shipped since shipped is mentioned in the first sentence. Furthermore, the article points it out: "Nokia confirmed today that one-million N-Gage gamedeck's (including the revamped QD) have been shipped to retailers globally, a figure which must be disappointing for the Scandinavian firm's hopes of securing a strong foothold in the games market. One million sounds like a lot, but this is not a 'sold' figure, just the number in the hands of retailers."
Well the QD is definitely selling better than the original. So I would guess between 1 million and 1.5 million at the very most. Kind of hard to say since we don't know how many of those 1 million units were actually sold.
well its not going to be 1.5 million if they have only shipped a million out. i reckon it is about half that, but rising rapidly.
possibly, but i think with the standard of games getting loads better, the number of users will rise rapidly too!