The Last of Us VGA trailer was In Game, proof inside.

[Ssliasil]

In fact here is a link that explains how this is possible...

http://www.csa.com/discoveryguides/multicore/review4.php

Here's an excerpt...

CELL Processor

A Sony-Toshiba-IBM partnership (STI) built the CELL processor for use in Sony's PlayStation 3, therefore, CELL is highly customized for gaming/graphics rendering which means superior processing power for gaming applications. The CELL is a heterogeneous multicore processor consisting of nine cores, one Power Processing Element (PPE) and eight Synergistic Processing Elements (SPEs), as can be seen in Figure 5. With CELL's real-time broadband architecture, 128 concurrent transactions to memory per processor are possible.

In other words the Cell Processor was built from the ground up as a GPU/CPU hybrid. Doing this enables much more potential than an individual CPU and a GPU working together, and is also a cheaper alternative. Thus, the Sony/Toshiba Cell Processor is likely to be adopted by most - if not all companies in the future.

Basically the Cell is more powerful than the CPU and GPU in the Xbox 360 combined, its only downfall is that its architecture is completely different than any other system out there and it will take time for everyone to leave their comfort zone and embrace such an enormous change in computing.