I do not know... they haven't completely finished R&D on the 45 nm process so they haven't released more data on it...
I think that launching late 2005 or early 2006 they will finsih working on thew 45 nm process and will bring the yelds of their 65 nm lines to a very good status and will have time to benchmark the architecture more and make last minute minor changes ( when I say last minute I meansome months before real mass production starts... by launching later the whole R&D cycle is stretched ) push the process ( clock-speed wise, by optimizing the circuit design ) and they will improove programming libraries, developers tools and work on having better games when the system launches...
Thanks to the increased yelds, the manufacturing costs of PlayStation 3 would be lower and this would save them money ( that can be invested... keep reading
).
I am sure developers would all jump ship if Sony promised to sweeten the delay with lower PlayStation 2 fees ( introduction of a very cheap PSTwo model ), special "thank you for PlayStation 3 support" package containing low PSP license fees and the deliver of great high level APIs, powerful development tools and great docs on PlayStation 3 architecture to them
Also increased would be the chances of full-blown Blu-Ray functionality ( meaning a bit more than the Blu-Ray "lite" I was expecting [lite, but still Re-Writable] ) and better PSX and PlayStation 2 backward compatibility, etc...
This delay might be related to Cell and to the R&D spent to produce a Cell based CPU for the PSP using 90 nm technology...
The delay would not be horrible for them ( if, taking advantage of this supposed "delay", they ship with GT5, FFXIII, Jak & Daxter Next, Virtua Fighter 5, maybe Z.O.E. 4 or MGS5 [MG 10] and so on they could have one more source of huge hype surrounding them [they know how to generate hype
] and would make the PSP quite special ( it could network with the PlayStation 3 very nicely
)...
If Playstation 3 is delayed to late 2005 or early 2006, I am sure Sony will take advantage of the extra time very well