This code is my first obfuscation, and my birthday present to me :-). It's based on a feature discovered by Ovid and mainly uses that one - in obvious and surprising ways I think.

It dosen't pass -w but it uses strict; (weird, eh ?), and it works at least with ActiveState Perl 5.005_03 (but reportedly not with 5.6)

Enjoy

Update: A spoiler/explanation is now available on my home node

More Update: I've got some reports that this obfuscation also works under ActiveState Perl 5.6, which I didn't test. Thanks to isotope and Tye. 

#!/usr/bin/perl                   ;s
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                                  ;;
          use       strict        ;s
                                  ;s
    You can never use it too much ;s
                                  ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;$~;$~=($~=~$~,",~$~=~$)=~$;~$=;;;

                          ;;;;
                          ;;;;
Dear Friend,        ~=$~=-$$-=~$~"=~
   Use              =~$"=~$",0=~$"=~
        strict.     $~ =~"$~"=~$~ =~
 Be                  ,"=~$~=~s","=~
   Another          ~==============~
          Hacker    "),".$~$$~$.",$~
        and         $~=~0,$~=~s~=\~~
Just                ~,     $~     =~
   Love             %$$;$~=~s~.=+\~~
       Perl         ~,$~=~print$~,=~
          Forever  ;$~;0000000000;$~;

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In reply to use strict; by Corion

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