But there's still quite a few things we can only guess it, including what the extra pins of the T-Socket will do for the 90 nanometer processor.
Hans de Vries at chip-architect.com has taken a look at what we know already, and what was discovered later, including information about the cache, the infamous 13 PNIs, La Grande - whatever that is - and hints Intel has dropped about improved hyperthreading, better pre-fetching, and improved power management and integer multiply latency.
In an article on his site he looks at the sheets with some die information and puts together a speculative diagram of the die as well.
He wonders about the die size too, and you can read all of his thoughts over here. µ
See Also
2004 Prescott, Tejas chips to have new socket, chipsets
Intel restores Prescott "secret pages"
Intel confirms Tejas, Prescott, Canterwood, Springdale details
Prescott 3.20GHz appears in Intel roadmaps
Intel Developer Forum Spring 2003 coverage