This is the third major hollywood movie that the 770 has been in of late. I think this is product placement, pure and simple. Regardless of whether the ITT community considers the 770 "dead", I still see the 770 on store shelves and I have seen advertising for the 770 well after the official "we will no longer be supporting the 770" announcements. I am unsure of whether Nokia continues to manufacture the 770, but they seem to be working hard to "clear inventory."

Another thing to consider is that principle shooting for movies, particularly those which rely heavily on CGI (in lieu of plot, acting, script writing, etc.), often wraps up YEARS in advance of the film's release.