Pacific Rim - New Trailer

Giant robots vs. alien monsters.  Need I say more?  This is a movie about aliens invading from a portal in the ocean and humans fighting back with remote controlled giant robots.  This...could...be...epic.  It WILL be awesome.  Why?  Refer to first sentence in this paragraph.  Also, I know I'm hearing GLaDOS from the Portal games in this trailer.  Makes me hungry for some cake.  1 question: why is called Pacific Rim?  Of all the things you could've named this movie...Pacific Rim?  Really?