New clip for The Avengers features Nick Fury and Maria Hill

A new clip has been released for The Avengers that features Col. Nick Fury and S.H.I.E.L.D. agent Maria Hill. Cobie Smulders, who plays Maria Hill, made an appearance on the Late Show with David Letterman and debuted the new clip while saying that the final cut of the film is "really really good". Though to be honest I wouldn't expect her to say it was bad. The clip shows us a rocky conversation between Fury and Hill.

We know the tesseract that they are talking about is the cosmic cube but the mystery is what this "Phase 2" technology is. Anyone have any theories? And what did you think of the clip?

Source: Comic Book Movie