We did this last year.
It was coo'
We will use Xat. It's public and free to join any time with no signups. Our room is this: http://xat.com/VGBAATE32012
For a voice chat running commentary we will use skype. If you wish to join in: The vgba group can be found by clicking this (You need skype to open link).
No dedicated stream: Use IGN, YouTube or GTTV.
All conferences will be televised as well on G4TV and Spike (Spike will not have the Sony conference as it is exclusive to G4TV).
Exhibitors And Possible Exhibits:
May this year bring another great E3 and an onslaught of stupid douchebag announcers!