[xquery-talk] xquery technology now ready?

[e-letter]

Readers,

Can xquery be used for the following scenario:

a "database" (originally from 'w3schools' web site)

<?xml version="1.0" encoding="utf-8"?>
<!-- Edited by XMLSpy®, taken from http://www.w3schools.com-->
<?xml-stylesheet type='text/xsl" href="xstylesheetexample.xslt" ?>
<bookstore>
	<book category="COOKING">
		<title lang="en">Everyday Italian</title>
		<author>Giada De Laurentiis</author>
		<year>2005</year>
		<price>30.00</price>
	</book>
	<book category="CHILDREN">
		<title lang="en">Harry Potter</title>
		<author>J K. Rowling</author>
		<year>2005</year>
		<price>29.99</price>
	</book>
</bookstore>

Can an xhtml web page be created with a html form to select a book
title from a menu list, then display the full details of the book in
another xhtml web page, using xquery?

web page 1:
select title Harry Potter

web page 2 result:
Harry Potter
J K. Rowling
2005
29.99

What software (if any) needs to be installed for the xml documents to
be processed on a standard linux web server?