Bug: Zero Duation Events and <category> elements.

Hello,

I may have found a bug (or at least a Documentation inconsistancy).
According to
http://code.google.com/apis/gdata/common-elements.html#gdWhen , a
zero-duration event should look like:

<gd:when startTime="2005-06-06T17:00:00-08:00"/>

Now I want to update an event to be a zero-duration event, sending the
following xml:
--------------------------------------------------------------------------------
<entry xmlns:gd="http://schemas.google.com/g/2005";
xmlns="http://www.w3.org/2005/Atom";>
  <category scheme="http://schemas.google.com/g/2005#kind";
term="http://schemas.google.com/g/2005#event"/>
  <title type="text">zero duration event</title>
  <content type="text">description</content>
  <author>
    <name>kewisch@xxxxxxxxx</name>
    <email>kewisch@xxxxxxxxx</email>
  </author>
  <gd:transparency
value="http://schemas.google.com/g/2005#event.opaque"/>
  <gd:eventStatus
value="http://schemas.google.com/g/2005#event.confirmed"/>
  <gd:where valueString="location"/>
  <gd:when startTime="2006-09-19T02:02:00+02:00"/>
  <gd:visibility
value="http://schemas.google.com/g/2005#event.public"/>
</entry>
--------------------------------------------------------------------------------
As a response I get a 400 Bad Request. The Response string is
"Expecting an end time component in g:when." (Note also the typo, I
believe it should be gd:when?).

=========================================

I also have noticed when getting event feeds (not specifically
zero-duration events) I often get two category elements that look
similar in the same entry. I would have expected only one. Its only
minor, but this should be documented right. This is how they look.
Notice the second atom:category has a @scheme withough the #kind:

<category scheme="http://schemas.google.com/g/2005#kind";
term="http://schemas.google.com/g/2005#event"; />
  <category scheme="http://schemas.google.com/g/2005";
term="http://schemas.google.com/g/2005#event"; />