"Opera 4.0 beta 4 for Linux is available on Intel x86 platform.
PPC is soon to come."
"Opera for Linux has been tested on RedHat Linux 6.2, Debian
Potato 2.2, Slackware 7, NetBSD 1.5_BETA/i386, and Linux Mandrake
7.1; we'll be releasing versions regularly now with the progress
updated. There are now also ports to other platforms working nearly
as well as the RedHat Linux 6.2 version is...."
"Here's what Opera for Linux does so far:
Renders HTML 3.2 and 4.0 Pages
Executes most EcmaScript 1.1 (Ecma-262 v.3) programs
Renders CSS 1 and 2 extensions
Browses FTP Sites
Supports HTTP 1.0 and 1.1
Displays GIF, PNG and JPEG
Hot list, bookmarks and bookmark bar
Imports Netscape, Konqueror and IE bookmarks/favorites...."