The story happened yesterday?  Where did Sony deny it?  Where are you getting this?
Anyway, I didn't believe it for a second, but the source, Bloomberg, had me at least thinking about it.  I realize how long it takes to make games, what I was asking was if anyone had any actual information on this.  For instance, a response from Sony, a substantiation from another site, etc.
It's absolutely preposterous that Sony would release PS3 this year, OF COURSE, but here's the story  nonetheless.