I love your plugin, definately speeds up development.
One of the things that did always bother me is that every time the same page is visited the text is different.
So I added something to the 'pers_lorem_func' function that might be helpfull:
// set random seed
$iSeed = $seed; // <-- added this one here to the extract(shortcode_atts
$sUri = $_SERVER["REQUEST_URI"];
for($i=0; $i<strlen($sUri); $i++) $iSeed += ord($sUri[$i]);
imho a nice to have :-)