Just asking a small question here...

How is

sub test
{
    sig my $x, my $y , \@opt;
}
[download]

Any better than

sub test
{
    my ( $x , $y ) = @_; 
}
[download]

Don't get me wrong, I understand you add a few extra features to the first thing. But the user will have to learn/do extra syntax, without getting regular signature syntax like other C languages have. Besides these don't offer signatures in the true sense.