In a follow up to the earlier report regarding Hulk Hogan being in Las Vegas tonight, PWInsider has confirmed that Hulk Hogan was in fact backstage at the WWE Network event. He was reportedly hanging out with Big Show most of the night.
Some sites were reporting that Hulk Hogan would actually appear on the broadcast, and while that was certainly a possibility, WWE opted not to use him tonight. It's worth noting that Hogan's visit wasn't random. WWE sources knew as early as Monday that he'd be in Vegas and attending the event. Hogan apparently even told several people that he would be going.
All reports and signs indicate that WWE and Hulk Hogan are definitely in negotiations, and it's still expected he'll have some sort of involvement at WrestleMania XXX.