As of Aug 30, the Genie can push up to 3 live streams to connected PCs/laptops, etc. As per usual, the Genie and the PCs must be connected to a wireless home network (wireless router, CCK, et al). Yes, this means you can watch DirecTV on your PC (actually, up to 3 of them simultaneously). Not just recorded content (aka DirecTV2PC), but live TV.
Additional details/revisions to follow. For mods: this is not pre-release info. Just did not see a post about it yet.
**If this feature is something that we already knew, please advise.