Terahertz?

Recently, IBM has demonstrated a chip running at 500 Ghz in a very low temperature setting and at 350 Ghz at room temperature. They are confident that they could reach 1 Thz in the future. Let's imagine a 1 Thz computer... you would be able to play you extra fancy ultra realistic 3D action shooter on a giant high resolution screen while also doing some background transcoding of you DVD collection for your portable .5 Thz (lol) video player. I can't imagine any further... do we really need 1 Thz? :D

Here's a link:

http://www.macworld.com/news/2006/06/20/500ghz/index.php