Add information about the work in progress to bring in the X packages

(server, client, libraries) from freedesktop.org.

Once the website has next been updated, please feel free to post the
following URL in response to the questions about it:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/x.html#WHICH-X

Discussed on:	freebsd-doc, freebsd-x11

en_US.ISO8859-1/books/faq/book.sgml

@@ -7001,6 +7001,86 @@ options    SYSVMSG          # enable for messaging</programlisting>
     <title>The X Window System and Virtual Consoles</title>
 
     <qandaset>
+      <qandaentry>
+        <question id="whatis-X">
+          <para>What is the X Window System?</para>
+        </question>
+
+        <answer>
+
+          <para>The X Window System is the most popular windowing system
+	    capable of running on UNIX or UNIX-like systems, including
+	    &os;.  <ulink url= "http://www.x.org">X.org</ulink> administers
+	    the <ulink url="http://www.x.org/X11_protocol.html">X protocol
+	    standards</ulink>.  The current release of the specification
+	    is 11.6, so you will often see references shortened to
+	    <literal>X11R6</literal> or even just <literal>X11</literal>.
+	  </para>
+
+	  <para>Many implementations are available for different
+	    architectures and operating systems.  For instance, an
+	    implementation of the server-side code is properly known
+	    as an <literal>X server</literal>.</para>
+
+        </answer>
+      </qandaentry>
+
+      <qandaentry>
+        <question id="which-X">
+          <para>Which X servers are available for &os;?</para>
+        </question>
+
+        <answer>
+
+	  <para>In the past, if you wanted to run X on &os;, you were
+	    basically restricted to running an X implementation called
+	    <literal>XFree86</literal>&trade; which is maintained by
+	    <ulink url="http://www.xfree86.org">The XFree86 Project,
+	    Inc.</ulink>  This software was installed by default on
+	    &os; versions up until 4.10 and 5.2.  Although X.org
+	    itself maintained an implementation during that time
+	    period, it was basically only provided as a reference
+	    platform, as it had suffered greatly from bitrot over
+	    the years.</para>
+	    
+	  <para>However, early in 2004, the XFree86 Project split
+	    over issues including the pace of code changes, future
+	    directions, and a licensing change.  X.org updated its
+	    source tree to the last XFree86 release before the
+	    licensing change (XFree86 version 4.3.99.903), incorporated
+	    many changes that had previously been maintained separately,
+	    and has released that software as X11R6.7.0.  A separate but
+	    related project, <ulink url="http://www.freedesktop.org">
+	    freedesktop.org</ulink> (or <literal>fd.o</literal> for short),
+	    is working on rearchitecting the original XFree86 code to
+	    reflect modern graphics card technology (with the goal of
+	    greatly increased performance) and modern software practices
+	    (with the goal of incresed maintainability, and thus faster
+	    releases as well as easier configuration).  X.org intends to
+	    incorporate the fd.o changes in its future releases.</para>
+
+	  <para>The current technology roadmap for &os; includes
+	    replacing XFree86 with fd.o as the default server sometime
+	    later in 2004 under the assumption that the pace of its
+	    development will more closely match that of &os; itself.
+	    The XFree86 ports
+	    (<filename role="package">x11/XFree86-4</filename> and
+	    subports) will remain in the ports collection and be supported
+	    as developer interest permits.  Note that it is not currently
+	    possible to mix-and-match pieces of each implementation;
+	    work is under way to correct this problem.</para>
+
+	  <note>
+	    <para>The following paragraphs refer to the existing
+	      XFree86 implementation, but most should also be applicable
+	      to the fd.o implementation as well.  While the default
+	      configuration filename for the fd.o implementation is
+	      <filename>xorg.conf</filename>, it will search for
+	      <filename>XF86Config</filename> if it cannot find it.</para>
+	  </note>
+	</answer>
+      </qandaentry>
+
       <qandaentry>
         <question id="running-X">
           <para>I want to run X, how do I go about it?</para>