They talk about people experimenting with the new HD-DVD add on for the 360. Apparently it can hook up to any PC with ease and if you have XP or Vista you can access the file system and play HD movies.
So $200 bucks right now can get you a working HD-DVD player.
Argh -- looks like MR4 may be delayed, but the date change happened within the last couple of days. (Nothing unusual for the gaming world, but frustrating nonetheless. As they say in the wrestling world, "card subject to change.")