You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="IPAD2KBCS.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="BelkinKeyboardFolioforiPad2.jpg" timestamp="2012-01-06T12:24:17Z" url="http://media.davidspencer.ca/w/images/f/f5/BelkinKeyboardFolioforiPad2.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:BelkinKeyboardFolioforiPad2.jpg" ns="6" title="File:BelkinKeyboardFolioforiPad2.jpg" />
      <img name="Bell-turbo_hub.jpg" timestamp="2010-08-15T12:27:43Z" url="http://media.davidspencer.ca/w/images/a/a9/Bell-turbo_hub.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:Bell-turbo_hub.jpg" ns="6" title="File:Bell-turbo hub.jpg" />
      <img name="Bell_turbo_hub-front.jpg" timestamp="2010-08-15T13:28:10Z" url="http://media.davidspencer.ca/w/images/8/84/Bell_turbo_hub-front.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:Bell_turbo_hub-front.jpg" ns="6" title="File:Bell turbo hub-front.jpg" />
      <img name="Bell_turbo_hub_rear.jpg" timestamp="2010-08-15T13:27:31Z" url="http://media.davidspencer.ca/w/images/e/e1/Bell_turbo_hub_rear.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:Bell_turbo_hub_rear.jpg" ns="6" title="File:Bell turbo hub rear.jpg" />
      <img name="David_graves.jpg" timestamp="2010-01-09T14:15:56Z" url="http://media.davidspencer.ca/w/images/2/22/David_graves.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:David_graves.jpg" ns="6" title="File:David graves.jpg" />
      <img name="David_spencer-100.jpg" timestamp="2010-08-18T11:45:29Z" url="http://media.davidspencer.ca/w/images/9/9c/David_spencer-100.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:David_spencer-100.jpg" ns="6" title="File:David spencer-100.jpg" />
      <img name="David_spencer-150.jpg" timestamp="2009-12-26T15:06:27Z" url="http://media.davidspencer.ca/w/images/2/24/David_spencer-150.jpg" descriptionurl="http://media.davidspencer.ca/wiki/File:David_spencer-150.jpg" ns="6" title="File:David spencer-150.jpg" />
      <img name="Flagcanadamini.gif" timestamp="2009-12-26T14:52:03Z" url="http://media.davidspencer.ca/w/images/a/a8/Flagcanadamini.gif" descriptionurl="http://media.davidspencer.ca/wiki/File:Flagcanadamini.gif" ns="6" title="File:Flagcanadamini.gif" />
      <img name="HTM_logo_transparent.png" timestamp="2009-12-26T15:01:36Z" url="http://media.davidspencer.ca/w/images/d/d5/HTM_logo_transparent.png" descriptionurl="http://media.davidspencer.ca/wiki/File:HTM_logo_transparent.png" ns="6" title="File:HTM logo transparent.png" />
      <img name="Hd_video-logo-140.gif" timestamp="2010-04-11T22:45:08Z" url="http://media.davidspencer.ca/w/images/5/5e/Hd_video-logo-140.gif" descriptionurl="http://media.davidspencer.ca/wiki/File:Hd_video-logo-140.gif" ns="6" title="File:Hd video-logo-140.gif" />
    </allimages>
  </query>
</api>