The following page :

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN"
"http://www.wapforum.org/DTD/xhtml-mobile10.dtd" >
<html>
<head>
<title>Test</title>
</head>
<body>
<div>
<img style="float:left" alt="" src="/cocoon/sport/img/lens_s.gif"></img>
Text around the float image.
</div>
<div style="clear:both">
<table>
<tr>
<td>Foo bar Foo bar Foo bar Foo bar Foo bar</td>
<td>Foo bar Foo bar Foo bar Foo bar Foo bar</td>
</tr>
</table>
</div>
</body>
</html>

shows that the float image introduces a bug in the display of the tables (text is indented in cells).
If I put the css style in the <head> section, the style is ignored.
If I put the css style in an external css file, the result is the same.

This bug can be reproduced on a 3650 device.