Something like this ([] used instead of the usual symbols so the code displays properly)...
function print_free_text(Page p) {
print_comp_header("Testing");
"""Under development[P]""";
"""[IFRAME src='http://www.somepage's url'][/IFRAME]""";
print_comp_footer();
}
It doesn't have to go in the free text. I could just as easily tack it on the end of another component if the reason this doesn't work is because it's in the free text.