"commercial high-performance X servers" in FAQ

[semin@NZ]

Hi there.

The section "6.4. Are there any commercial high-performance X servers?" in FAQ mentioned Metro Link and Xi Graphics. However, I can't connect on www.metrolink.com.

On the other hand, although it mentioned about Xi Graphics that "There is a free ``compatibility demo'' of version 5.0 available.", but there're some words in Xi Graphics' site like this:

Lack of demand caused this OS to be dropped from standard list.
It is only available for Custom Projects.

Is that mean we've got to find other place to get commercial X servers?