Where to get it?

• CPAN - http://search.cpan.org/dist/Devel-Cover (0.55) [1]
• PPM (5.6.1) - http://crazyinsomniac.perlmonk.org/perl/ppm/Devel-Cover.ppd (0.47)
• PPM (5.8.x) - http://crazyinsomniac.perlmonk.org/perl/ppm/5.8/Devel-Cover.ppd (0.47)

[1] requires a C compiler if building from source