There is a DOTA 2 tournament going on at gamescom this year, and you can check out the livestream here - but what if you want to play the bloody game? Well, turns out there's a beta!
Applying for access to the beta is simple - head to the official DOTA 2 site and simply sign in with your Steam Account.
There is no official date for the beta as of now, but I've just applied and was told I'd be contacted with info about my "status" as Valve get closer to the BETA. Which I'm guessing is a roundabout way of saying, we'll let you know if you've successfully got into the beta at a later date.