This would imply that Fermi is a farce, does not exist in any form and never will, or that it is big on paper but will never reach retail. Both of which are false statements.
ATI is going to have some massive competition come Q1. A 5890 will help but does not appear that it will do any dethroning. Also I believe a 28nm process in mass production in Q1 10 to be a complete and total load of crap. They can't even get 40nm working.
It is extremely hard to take a large, high power and high complexity chip such as the RV870, shrink it a full node, while at the same time increasing power and complexity, apparently switching foundries, and putting it into mass production, all the while getting this done in a matter of months. That simply can't happen.
EDIT:
Anddddd.... the graph is already proven to be mere speculation:
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