The way I see it.
In NA it will take major mistakes by MS or nintendo to get sony out of the basement. Unless MS is stupid and does not drop the price this fall sony is going to get burried by the combo of GTA4+Halo3+pricecut.
It seems in europe the PS name will carry it to a second place finish behind the Wii. Sony had dispite all the bad press a good launch. I guess sales could tale off like in NA and japan after the intial rush but I think it will some but not enough to keep them from catching MS sometime next year.
In japan sony has second place locked up the 360 is dead there and nintendo is the king. Unless FF13 can get japanese gamers back to playing traditional games the PS3 will get killed by the Wii.
My guess right now on market share in 2010 would be Wii 40% MS 30% PS3 30%.
Agreed - my take though on marketshare by the end of 2010 is:
Wii 35%
xb360 35%
ps3 30%