Just in case you didn’t catch this last night in one of IGN’s Posts:

Well, we wasted no time putting Nintendo’s claims to the test. Shortly after we received our import copies of Super Smash Bros. Brawl, we held a few contests between our San Francisco and Los Angeles locations. Bear in mind a couple of notable differences from Nintendo’s own tests. First, our offices are a little farther apart – nearly 500 miles, to be exact. And we lowly Americans don’t have the benefit of one of the world’s fastest Internet backbones, as Japan does. Still, we’re very happy to report that our two-on-two experience perfectly mimicked Nintendo’s own – in other words, one-hundred percent lag free and two-hundred percent awesome.