Heroes of Newerth Goes Free to Play for the Week

We actually missed this initially, but since last Thursday, S2 Games' RPG/Strategy DotA-inspired Heroes of Newerth went temporarily free to play. This offer will last only until this Sunday so, in case you're interested in sampling the game for free, this is the time to do that.
Here's what the developers themselves have to say on the game's website:
To kick off the HoNiversary celebration, we are offering 11 days of FREE-to-play. Starting today (Thursday, May 12) at 9 p.m. EST new players will be able to sign up and play at no cost. Grab your friends and get your game HoN. The F2P session ends Sunday, May 22nd at 12 a.m. EST. To join, new players simply need to download the game and register a HoN nickname at: http://www.heroesofnewerth.com/create_account.php