Those of you who say that they need to eventually add Blu-Ray capability are simply wrong. If they need additional information beyond DVD's capability on an optical disc for their gaming system, they can use another format. My guess is that they could probably get the rights to use something akin to HD-DVD very cheaply. Or they could put in an entirely new system. Or, since they are interested in downloading HD movies, they could have it such that the extra data is online, not on the disc itself. Blu-Ray is absolutely not necessary in their gaming system.
And, as mentioned in the article, they might add Blu-Ray at some point in the future, if they think it is a good idea at the time. So, it may or may not be a part of a future version of their system.