I have been very impressed with the operation of WordPerfect 7.0 for Linux. I only recently downloaded it and tried it. It looks like WP 7.0 for Windows. The features appear to work properly. I especially like the spell-as-you-go feature!
The HTML publisher works a little better than that on WP 6.0, but still has some bugs. Someone reported that WP 7.0 requires a lot of swap space (I have not tested it at this time).
WP 7.0 is available as several LARGE tarballs from sdcorp's FTP site (or via the WWW). I tried for two days to download the 26MB archive using ISDN but only was able to get part of the file. I eventually had to use a commercial account with a T1 to the Internet to get the files. It would be much easier to download if each tarball was split into several smaller files (1-2 MB in size). Note, when you uncompress the tarballs, the result is a small number of medium sized files -- just what is needed.
The current version that you can download is time limited to 15 days. During this time, you can pay them and they will give you a license for it.
   For WP 7.0 Beta:
        ftp://ftp.sdcorp.com/pub/linux_betab/wp7linuxbetab.tar.gz
              4887525 graphics_tar.gz
             17652138 manual_tar.gz
               450535 wp60ms01_us.all
               290443 wp60ps01_us.all
             26962514 wp7linuxbetab_tar.gz
To install, you must extract the tarballs, run the Runme program, answer some questions and then run xwp to start WP 7.0. Note, you need 58 MB just for WP 7.0, prior to the manuals, graphics, etc.
              tar xvzf wp7linuxbetab_tar.gz 
                creates LINUX* files and Runme, the install program
                ./Runme
                License Screen:
                        Hit OK
                Demo Screen:
                        Hit OK
                          Corel Corporation:  800-772-6735
                            UNIX Support:     801-765-4019
                Installation Directory:
                        Enter directory, e.g., /opt/wp7.0
                        Hit OK
                Installation Size:
                        Full:      71-80M
                        Medium:    45-51M
                        Minimal:   37-41M
                Existing Application:           
                        If you have WP 6.0 (Caldera installs in
                        /opt/wp6.0 by default), you can keep your
                        settings for terminal drivers, printer drivers
                        and printer ports.  Recommended.
                        
                        Enter directory (if present)
                        Hit OK
                Edit /etc/magic?
                        Will add WP files to /etc/magic.  Will backup
                          /etc/magic as /etc/magic.bak
                        Select YES or NO
                        Hit OK
                Selection of languages to Install
                        Only have English, it is selected
                        Hit OK
                Select print divers:
                        Select your printers, may select more than one.
                        Hit OK
                Assign Printer Drivers to Destinations:
                        Click on a printer
                        Click on the destination (name from /etc/printcap)
                        Hit OK
                        Repeat for each printer you selected in previous step.
                        Hit OK
                Installation Review List:
                        Allows you to go back to any screen and make changes.
                        Select screen to make changes, or Hit OK to continue
                        Hit OK
                Graphicsl Corel WordPerfect(UNIX) installation screen 
                        includes progress bar
                Readme Review screen:
                        Allows you to read any review notes....
                        Select item and View to view it, e.g., license
                        Note if you entered a license, you need to add the 
                        license manager startup stuff to /etc/rc.d/rc.local!
                        Select Done when finished
                /opt/wp7.0/wpbin/xwp& (or wherever you installed it)
Note, I have WP 6.0 from Caldera, the first time I started, I got a prompt to load defaults from 6.0. I selected YES and WP loaded the defaults and exited. I then restarted xwp and my defaults, including the last files I edited with WP 6.0 were used!
Upgrade pricing expected to be $149.99 (US) and retail pricing $199.99.