Playstation 4 in the near future?

Sony execs have announced behind closed doors that the Playstation 4 could launch as early as 18 months from now, making them the number 1 console for Christmas of 2010. Now the real questions comes, is Sony really ready with a new console or are these just rumors to throw off the competition, maybe get one of them to announce a premature launch… and when can i pre order a Playstation 4.

The whole world of video games has changed so greatly over the last 20 years, Sony has begun to realize that a plan of 10 years per console (which is what they had initially intended) may not be feasible when technology changes at the rate it has been…

Above is a design that is claimed to be a mock up of the next generation of playstations.

Looking quite similiar to the PS3 but hopefully has a lot more loaded inside, and offers a lot more gamability. If this is the new PS4 design I would just like to point out what appears to be a lack of console slots, for controlers and such, possibly offering a wifi version of the Wii type controler, something that you can carry with you, step away with, and not feel tethered to your gaming console.