Toshiba recently demonstrated the Cell processor which was jointly developed with Sony and IBM. During the presentation the company showed the Cell processor simultaneously decoding 48 SDTV format MPEG-2 streams.
In the film, 48 MPEG-2 streams stored on a HDD were read, decoded and projected onto a 1,920 x 1,080 resolution display divided into 8 x 6 cells, each of which showed a different video in each cell. The company expects the technology to be used to display thumbnails for a video list. Of the eight synergistic processor elements (SPE) used in the Cell, six are used for decoding 48 MPEG-2 streams and one is used for scaling the screen. The remaining SPE can be used for a completely different processing function.
More info about the presentation of the Cell processor can be found at TechOn