[url=http://store.steampowered.com/app/5268/]Here[/url] is the L4D2 trailer that we announced with at E3 this year. Be sure to download the fullscreen HD Steam version for the full experience. We've also provided a downloadable [url=http://storefront.steampowered.com/v/gfx/apps_extras/5268/L4D2_Teaser.m4v]iPod/iPhone version[/url] to take with you on the road. Enjoy.