What have they done to Superman's costume?! 
I wonder if the recent legal dispute between Jerry Siegel's estate and DC has precipitated this. Several sources have reported the possibility of Superman splitting in two, with the rights to certain elements reverting to Jerry Siegel's heirs while everything else is retained by DC. If that happens we could see two simultaneous Superman comic/movie franchises: one produced by the estates of Siegel and Shuster, featuring the original flightless version of Superman, his origin story and costume (minus the 'S' logo), Lois Lane and both Superman's Kryptonian and Earth parents; and another produced by DC, featuring most of Superman's other powers (flight, heat vision, etc), plus most of his supporting cast (Jimmy Olsen, Cat Grant, etc) and his entire gallery of rogues. If this is the case then it would explain why they've changed Superman's costume after 73 years.
Hopefully they're just playing it safe with the new costume until the legal dispute is resolved (which one way or another will happen by 2013). Then once everything is straightened out he'll ditch this 'prototype' for the real costume. At least I hope so...

I wonder if the recent legal dispute between Jerry Siegel's estate and DC has precipitated this. Several sources have reported the possibility of Superman splitting in two, with the rights to certain elements reverting to Jerry Siegel's heirs while everything else is retained by DC. If that happens we could see two simultaneous Superman comic/movie franchises: one produced by the estates of Siegel and Shuster, featuring the original flightless version of Superman, his origin story and costume (minus the 'S' logo), Lois Lane and both Superman's Kryptonian and Earth parents; and another produced by DC, featuring most of Superman's other powers (flight, heat vision, etc), plus most of his supporting cast (Jimmy Olsen, Cat Grant, etc) and his entire gallery of rogues. If this is the case then it would explain why they've changed Superman's costume after 73 years.
Hopefully they're just playing it safe with the new costume until the legal dispute is resolved (which one way or another will happen by 2013). Then once everything is straightened out he'll ditch this 'prototype' for the real costume. At least I hope so...