The games being ported to HTML 5 are quite impressive. When you watch what is going on in this space you clearly see a new player in the web gaming industry. While Zynga pretty much rules the web gaming world with all of their popular games on Facebook, with HTML 5 and the Canvas support this will open up the competition to many more game developer shops and indie game developers. If you just search for “html 5 game” you will get a ton of hits dating back to 2008.
Check out this cool video of ID software’s Quake2 GWT Port: