A900 is entry level only....
Nikon will use new format (new mount) in Feb 2009 (like leica 37mp S2 system, canon have one protype now, 50mp already)
Sony also....big CCD/CMOS will bring lots details, also profit...
wah! serious? read about nikon MF rumours in other forums before too. looks like the big boys are really pushing into the MF category if its true. Then it seems that Oly and Pentax are downsizing into more compact dslrs.
cool, exciting times ahead like always =)