> Marvell's 88F6281 is listed as being able to be clocked at up to
> 2Ghz, due for release this year.

We'll see. In June 2008 it was announced to be clocked up to 2 GHz, 4 months later (page 2) it was reduced to 1.5 GHz, and finally it has been released with 1.2 GHz max.