He's so used to Twitter he thinks his blog won't accept more than 140 characters of input. I wish he'd said more. What game is Twitter playing in? In what ways does knowing what game you're playing help?
And I agree that playing any one of them is fine, as long as you know what you're playing. The saddest examples are folks who play the fun game thinking they're playing the little or big game...after a while the fun goes out of it, and because it's being played like a fun game, the rewards are non-existent or certainly not worth the effort when it's not fun anymore.
I'll go so far as to say I think Evan accidentally ended up playing the big game with Blogger. Started out as fun, but ended up being big. And, to be even more bold, I suspect he started out playing big with twitter but it's going to turn out to be a little game (but it's also fun, so that's probably OK). Accidents happen. And, I may be wrong...I've met Evan a couple of times and he's quite smart, so he could very well be playing an even bigger game than Blogger with Twitter. There's certainly enough cell phones out there to make it so.