The Inquirer has the low down on a new type of silicon.
Here's a bite from their article:

Taiwanese foundry TSMC will be shipping chips built on a 0.18 micron process using hybrid silicon germanium (SiGe) technology in 2002, the company announced in London earlier today. Gates built using the technology will be capable of operating at up to 120GHz compared with the 50-60GHz of today's silicon.

So for more info warp to The Inquirer.