It wouldn't be able to emulate Natal simply because it does not have the tracking technology capable of doing so.  If they used the PS Eye to track the whole body and try to make a wire frame and all that without using wands to track more than 2 points, it would be very inaccurate since it only measures color changes and size changes in 2D.

I don't like Resistance. Killzone 2 was great, and i'm excited about Killzone 3. Score wise they both can compete with Reach, now sales wise i think both KZ3 and Resistance 3 don't stand a chance against Reach (hell, the later released expansion ODST outsold both R2 and KZ2,  combined).

One game is rarely enough to offset the balance unless that game is NSMBWii. Reach will sell zounds but we can't expect one game alone to work wonders and shoot hardware sales through the roof forever.
There will be a spike, as is common when big games release, but in the long run you can't put all your faith in one title alone.
Its the entire library that matters and in that regard I feel that the HD twins are equal today (whereas the 360 has been ahead most of the gen due to some really good 3rd party efforts) and I can't see a better time to own both!

^Now chill out, CGI! Quit trying to start something!

Unless Reach using Natal to make Halo so awesome and accessible and basically make it something other than yet another Halo FPS (we've had 4 of those, two this gen already) Reach isn't going to be any kind of blow to Sony.

MS somehow securing exclusive rights to GT5 or FFXIII (won't happen I know), that would be a blow to Sony.

I understand games as system sellers (or traditionally "killer apps") have some of these aspects to them:

* They come out early in the system's life on the market.  The libraries are smaller, and it becomes the game of choice.  The game remains around, and people feel they need to own a system for it.  When a game comes out later, it has less of an impact.  Of course, several games with the same name can come out, then we talk about a franchise being a system seller.

* The game is a console exclusive, or ends up being the preferred version on a console by a wide margin.

* The game is the flagship franchise for a new genre that hasn't been around before, and established as a hot seller.  The Wii has launched Wii Fit that belongs in this. 

Because of the above, I don't see any particular release being that relevant as a killer app. 

This is a very poorly written article.

I do expect a spike for 360 hardware numbers when Reach drops, but for it to have the same impact as Halo 3? I strongly doubt it. It is in no way the ultimate blow to Sony. Natal might be. But that's a totally different story. And GT5 can pull some very strong numbers. Maybe not AS strong as previous iterations, but it certainly can.

@slowmo: I think we came to an agreement that it did cause a spike, but wasn't a massive system seller. Besides, in this context, we're talking about a game that will, somehow, destroy a corporation.

I sense a lot of hype in this one.

Hellno