Via 1UP comes the news that Nintendo will reveal all Revolution details during their preshow press conference.
At the conference, Nintendo plans to announce all "details about Nintendo's upcoming games and hardware, including [their] next home console, code-named Revolution." The conference takes place before the E3 show opens, on May 9 at 9:30 AM. We'll be there, and we'll be sure to let you know what they're saying when we hear it.