4:3 is dead
CrackedButter, yes, me and 500 million of my nearest friends.
The overwhelming majority of photos are printed on 6"x4" paper = 3:2
If you have a 3:2 camera you do not need to use Photoshop or Irfanview to adjust every shot - they just fit. The scary part is that most people who put their photos in for printing do not even realise that there has been a slice automatically removed from the top and bottom to make them fit.
Professional photographers who submit photos to newspapers etc will use a professional grade camera, not a 4/3s Olympus.
The market will decide the winner, I would not buy shares in 4:3 DSLRs.