Diamond operator and quoted word?

[Keedi Kim]

I watched Dr. Damian Conway's speech on OSCON 2008 movie clip.
And I saw unfamiliar syntax.

I know quoted words...

my @list = qw<word1 word2 word3 ... >;

and I know @ARGV or filehandle with diamond operator...

my @lines = <$fh>;
my $one_line = <>;

But this expression is very suprising...

my @list = <word1 word2 word3 word4>;

Would anybody please explain about that syntax
or give me an reference link to study?

Thanks,

Regrads,
Keedi Kim