What do I want to play? Hmm, I've only got about a 1/2 hour, I know: WarMage from Burst Online Entertainment. Why would I want to play that? Why wouldn't you want to play it is a better question? It's free, it loads in a browser, you can play against people or the AI, you have upgrade options, customizable formations, multiple races, GenCon2011 (hint), you can limit the time to take a turn, player ranking system and you can always just quit if you need to.
So what's bad about it, well, so far I've played it on my home machine, which is old and underpowered, and the game was pretty choppy. It was playable, but not exactly enjoyable. My work machine is a different story - yes, I use my work computer for non-work related activities sometime, but it's newer and more powerful and I needed a comparison. Also, it crashed out of IE 9 on one of my early games where I had burned the Dragon Scroll. Finally, there is stuff to buy, with real money, but who really wants to do that - oh, just about everybody these days.
Supposedly, the ranking system is dynamic and a high ranked player doesn't get much for beating a low ranked player and a low ranked player might actually increase from playing a much higher ranked opponent.
The graphics are basic, like most browser based games, but good enough to easily distinguish between units, the units are distinct enough to really appreciate a kill on the opposing side or hurt on your side. There are a ton of maps and I might recommend that they open source that feature for the fans to make some contributions.
I haven't spent enough time in the lobby areas to see what the idle chat is like, so I cannot speak on the other players, but I can say that any time I was in the lobby was time I wasn't playing the game, which I want to do.