This was done so that the layout would stay consistent with long product names. You can change this be finding the following code on those two pages:
<h2 title="<?php if (strlen($WA_Store_Cart->DisplayInfo("Name")) > 11) echo ($WA_Store_Cart->DisplayInfo("Name")); ?>">
<?php echo substr($WA_Store_Cart->DisplayInfo("Name"), 0, 8); ?>
<?php if (strlen($WA_Store_Cart->DisplayInfo("Name")) > 11) echo "..."; ?></h2>
and changing it to:
<h2 title="<?php if (strlen($WA_Store_Cart->DisplayInfo("Name")) > 11) echo ($WA_Store_Cart->DisplayInfo("Name")); ?>">
<?php echo $WA_Store_Cart->DisplayInfo("Name"); ?>
</h2>

