No, it is not a "full frame world" just beacuse Canon and Nikon, and
soon Sony, have ultra-expensive 24x36 cameras. The world wasn't
medium format when we had medium format cameras in this price
bracket. 24x36 digital has taken over the analogue medium format
market. The 24x36 analogue market has been taken over by APS-C
digital.
And those formats will happily co-exist.
I don't understand how you even can use the term "full frame world"
when the majority of photographers hasn't won the lottery yet so they
can't afford those ultra-expensive cameras. 24x36 isn't for the
common people and never will be, which is proven by the Nikon D3. D3
hasn't made 24x36 more affordable, it is not a consumer or semi-pro
'cam. Nothing has happened yet, 24x36 is still this year at where it
was last year - it is still an ultra-expensive pro format for the
fortunate rich ones.
The D300 by Nikon and 40D by Canon strongly shows that "it is an
APS-C world", and will continue being that. APS-C is here to stay and
the latest releases from Canon and Nikon shows that this is true,
APS-C is getting stronger than ever before.
--
Take care
R
http://www.flickr.com/photos/raphaelmabo