1) Live twitter feeds on their website. One game site I frequent is doing this. I'm sure it's some plug in app they have installed on their web server, but they have this small area on their site (the homepage is a kinda dashboard view) that has a small widget that shows twitter feeds for what they're doing at E3 this year (they have the same thing posted in a forum thread). I think this is awesome - very cool if more than one popchix admin is tweeting (you'd see all their tweets in that widget) and would give more visibility to other popchix that something is going on. (And more work friendly for some of us)
2) Post voice messages using http://audioboo.fm/ Just. saw some guy using this (he basically recorded a voice msg about what's going on, and tweeted a link to his audioboo msg). I believe they have an app that installs on your phone.
I'll update as I see more coolness today...
