Ok, so it's only a paragraph, and there's nothing really new (and actually a mistake or two). Macworld's October Game Room section has a brief blurb on Halo, as well as some info on Oni.

Unfortunately, the preview contains some mistakes or misinformation (long time readers will likely recognize them as the same made immediately after Halo's launch). Take the 32 player and BungieNet.com bits with a grain of salt, and take a look at the Thursday, 07.22.1999 news for corrections.