Oh Uncharted 2, my beloved.

I find that very hard to believe. Which is more likely: that Sony would keep critical specs secret from the devs of one of their flagship exclusives, Killzone, or that Sony decided to up the spec at the last minute.

well not unexpected.

Guerrilha Games said the 8GB RAM announce was a surprise... the Killzone Shadown Fall was developed with a 4GB devkit.

Exactly my point. Why would Sony keep that spec secret from Guerrilla? They're developing a flagship launch exclusive after all. It's much more likely that Sony just changed the spec at the last minute, after the xbox leak.

It really looks like Microsoft are going to struggle in this generation. The PS4 and Wii U will be the best sellers this time around, and I wonder whether the Nextbox will even be released in Japan?

It will. Don't worry your pretty little head 'bout it.

Sorry, but developers having access to 7 gig does not mean that the release consoles will have access to 7.

Lets say you have 2 people working on a game, which is near completion. One knows nothing about programming, all he is doing is checking to see how well the game is balanced.

The other employee knows nothing about gameplay balance, he really wants to be programming supercomputers to work more efficiently. All he knows how to do is make games run more efficiently.

Because the third employee, who umade the game up to its current point was being rushed by his manager to produce somethign that would produce nice screenshots, the game is full of memory leaks. It requires 7 gig of ram to currently work.

Employee 1 thinks it will take him 2 months to sort the balance issues out, and Employee 2 thinks it will take him 2 months to get the game to only require 4 gig of Ram. If the dev kits allow 7 gig of ram to be used, the game will release in 2 months. If it only allows 4 gig, it will take 4 months.

tl;dr They did NOT announce that the PS4 console has 7 gig of usable Ram.

Those who are worried about load times... Don't be.

The Playstation 3 has a *slow* 2x BD drive, drives that are 16x faster are readily available, you would hope Blu Ray drives are faster, it's been 7 years.

Combined with the fact that developers will probably be installing data to the HDD should reduce the load times even more when a game access's both drives in tandem.
Plus when they start printing a game onto Disc, they place data on the disc in such a way so as to get the highest transfer speed and lowest latency on important frequently used data.

Plus there are other tricks they can do to, they can use high levels of compression to store the data on the disc, that data is then sent to the ram, then the CPU dedicates a core to unpacking it. - You can get some pretty crazy compression ratios on some stuff, think: 8:1, so a 100Mb file could become 800Mb in ram and so on.

PS4 uses a 6x BD drive... and with 7GB available the developer can use the RAM to decrease the load time instead the HDD.