Jack Tretton stated the specs for the PS4 aren't final yet. The PS4 is still in development in terms of specs and design and it can change any time.

source from http://gameolosophy.com/consoles/playstation/ps4-specs-not-finalized-goodbye-to-eight-gig-ddr5-ram/

just and wait and see how many idiots geniuses come out and say stuff like sony wont put 8gbs of ram in the final version, or try to downplay the ps4 specs

They pretty much released a list of all the specs. They're final.

Well...sort of final. I'm sure some changes are being made for the 8GB upgrade but I doubt the CPU or GPU would really change, maybe that secondary CPU. He is probably mostly talking about the design, something we didn't get to see and something that is probably not finalized, hence its non-existence.

Then why would Tretton come out and say otherwise?? This doesn't make any sense...maybe they are aware that a console with 8 gig GDDR5 would cost too much...look at their stock! They are investors who are afraid of the ps4 to be the ps3 all over again!

These are the kind of people that need to research their investments.

2gb of ram confirmed :D

they are just playing cat and mouse with microsoft

Hey maybe by having much lower specs, Sony will come out with the most innovative and creative software ever to grace the gaming industry. Ya know, because apparently building a powerful console means that any and all creativity will completely vanish! :o

Yeah no. Sorry bud.

The specs they released will more than likely be final. They may be subject to change, but that doesn't mean they will change.